Merge branches 'clk-qcom-alpha-pll', 'clk-check-ops-ptr', 'clk-protect-rate'... (74b48999) · Commits · e / devices / android_kernel_oneplus_sm7250

drivers/clk/clk.c

+435 −69

Original line number	Diff line number	Diff line
		@@ -62,6 +62,7 @@ struct clk_core {
		bool orphan;
		unsigned int enable_count;
		unsigned int prepare_count;
		unsigned int protect_count;
		unsigned long min_rate;
		unsigned long max_rate;
		unsigned long accuracy;
		@@ -86,6 +87,7 @@ struct clk {
		const char *con_id;
		unsigned long min_rate;
		unsigned long max_rate;
		unsigned int exclusive_count;
		struct hlist_node clks_node;
		};

		@@ -170,6 +172,11 @@ static void clk_enable_unlock(unsigned long flags)
		spin_unlock_irqrestore(&enable_lock, flags);
		}

		static bool clk_core_rate_is_protected(struct clk_core *core)
		{
		return core->protect_count;
		}

		static bool clk_core_is_prepared(struct clk_core *core)
		{
		bool ret = false;
		@@ -381,6 +388,11 @@ bool clk_hw_is_prepared(const struct clk_hw *hw)
		return clk_core_is_prepared(hw->core);
		}

		bool clk_hw_rate_is_protected(const struct clk_hw *hw)
		{
		return clk_core_rate_is_protected(hw->core);
		}

		bool clk_hw_is_enabled(const struct clk_hw *hw)
		{
		return clk_core_is_enabled(hw->core);
		@@ -519,6 +531,139 @@ EXPORT_SYMBOL_GPL(__clk_mux_determine_rate_closest);

		/* clk api */

		static void clk_core_rate_unprotect(struct clk_core *core)
		{
		lockdep_assert_held(&prepare_lock);

		if (!core)
		return;

		if (WARN_ON(core->protect_count == 0))
		return;

		if (--core->protect_count > 0)
		return;

		clk_core_rate_unprotect(core->parent);
		}

		static int clk_core_rate_nuke_protect(struct clk_core *core)
		{
		int ret;

		lockdep_assert_held(&prepare_lock);

		if (!core)
		return -EINVAL;

		if (core->protect_count == 0)
		return 0;

		ret = core->protect_count;
		core->protect_count = 1;
		clk_core_rate_unprotect(core);

		return ret;
		}

		/**
		* clk_rate_exclusive_put - release exclusivity over clock rate control
		* @clk: the clk over which the exclusivity is released
		*
		* clk_rate_exclusive_put() completes a critical section during which a clock
		* consumer cannot tolerate any other consumer making any operation on the
		* clock which could result in a rate change or rate glitch. Exclusive clocks
		* cannot have their rate changed, either directly or indirectly due to changes
		* further up the parent chain of clocks. As a result, clocks up parent chain
		* also get under exclusive control of the calling consumer.
		*
		* If exlusivity is claimed more than once on clock, even by the same consumer,
		* the rate effectively gets locked as exclusivity can't be preempted.
		*
		* Calls to clk_rate_exclusive_put() must be balanced with calls to
		* clk_rate_exclusive_get(). Calls to this function may sleep, and do not return
		* error status.
		*/
		void clk_rate_exclusive_put(struct clk *clk)
		{
		if (!clk)
		return;

		clk_prepare_lock();

		/*
		* if there is something wrong with this consumer protect count, stop
		* here before messing with the provider
		*/
		if (WARN_ON(clk->exclusive_count <= 0))
		goto out;

		clk_core_rate_unprotect(clk->core);
		clk->exclusive_count--;
		out:
		clk_prepare_unlock();
		}
		EXPORT_SYMBOL_GPL(clk_rate_exclusive_put);

		static void clk_core_rate_protect(struct clk_core *core)
		{
		lockdep_assert_held(&prepare_lock);

		if (!core)
		return;

		if (core->protect_count == 0)
		clk_core_rate_protect(core->parent);

		core->protect_count++;
		}

		static void clk_core_rate_restore_protect(struct clk_core *core, int count)
		{
		lockdep_assert_held(&prepare_lock);

		if (!core)
		return;

		if (count == 0)
		return;

		clk_core_rate_protect(core);
		core->protect_count = count;
		}

		/**
		* clk_rate_exclusive_get - get exclusivity over the clk rate control
		* @clk: the clk over which the exclusity of rate control is requested
		*
		* clk_rate_exlusive_get() begins a critical section during which a clock
		* consumer cannot tolerate any other consumer making any operation on the
		* clock which could result in a rate change or rate glitch. Exclusive clocks
		* cannot have their rate changed, either directly or indirectly due to changes
		* further up the parent chain of clocks. As a result, clocks up parent chain
		* also get under exclusive control of the calling consumer.
		*
		* If exlusivity is claimed more than once on clock, even by the same consumer,
		* the rate effectively gets locked as exclusivity can't be preempted.
		*
		* Calls to clk_rate_exclusive_get() should be balanced with calls to
		* clk_rate_exclusive_put(). Calls to this function may sleep.
		* Returns 0 on success, -EERROR otherwise
		*/
		int clk_rate_exclusive_get(struct clk *clk)
		{
		if (!clk)
		return 0;

		clk_prepare_lock();
		clk_core_rate_protect(clk->core);
		clk->exclusive_count++;
		clk_prepare_unlock();

		return 0;
		}
		EXPORT_SYMBOL_GPL(clk_rate_exclusive_get);

		static void clk_core_unprepare(struct clk_core *core)
		{
		lockdep_assert_held(&prepare_lock);
		@@ -905,10 +1050,9 @@ static int clk_disable_unused(void)
		}
		late_initcall_sync(clk_disable_unused);

		static int clk_core_round_rate_nolock(struct clk_core *core,
		static int clk_core_determine_round_nolock(struct clk_core *core,
		struct clk_rate_request *req)
		{
		struct clk_core *parent;
		long rate;

		lockdep_assert_held(&prepare_lock);
		@@ -916,6 +1060,38 @@ static int clk_core_round_rate_nolock(struct clk_core *core,
		if (!core)
		return 0;

		/*
		* At this point, core protection will be disabled if
		* - if the provider is not protected at all
		* - if the calling consumer is the only one which has exclusivity
		* over the provider
		*/
		if (clk_core_rate_is_protected(core)) {
		req->rate = core->rate;
		} else if (core->ops->determine_rate) {
		return core->ops->determine_rate(core->hw, req);
		} else if (core->ops->round_rate) {
		rate = core->ops->round_rate(core->hw, req->rate,
		&req->best_parent_rate);
		if (rate < 0)
		return rate;

		req->rate = rate;
		} else {
		return -EINVAL;
		}

		return 0;
		}

		static void clk_core_init_rate_req(struct clk_core * const core,
		struct clk_rate_request *req)
		{
		struct clk_core *parent;

		if (WARN_ON(!core \|\| !req))
		return;

		parent = core->parent;
		if (parent) {
		req->best_parent_hw = parent->hw;
		@@ -924,22 +1100,32 @@ static int clk_core_round_rate_nolock(struct clk_core *core,
		req->best_parent_hw = NULL;
		req->best_parent_rate = 0;
		}
		}

		if (core->ops->determine_rate) {
		return core->ops->determine_rate(core->hw, req);
		} else if (core->ops->round_rate) {
		rate = core->ops->round_rate(core->hw, req->rate,
		&req->best_parent_rate);
		if (rate < 0)
		return rate;
		static bool clk_core_can_round(struct clk_core * const core)
		{
		if (core->ops->determine_rate \|\| core->ops->round_rate)
		return true;

		req->rate = rate;
		} else if (core->flags & CLK_SET_RATE_PARENT) {
		return clk_core_round_rate_nolock(parent, req);
		} else {
		req->rate = core->rate;
		return false;
		}

		static int clk_core_round_rate_nolock(struct clk_core *core,
		struct clk_rate_request *req)
		{
		lockdep_assert_held(&prepare_lock);

		if (!core)
		return 0;

		clk_core_init_rate_req(core, req);

		if (clk_core_can_round(core))
		return clk_core_determine_round_nolock(core, req);
		else if (core->flags & CLK_SET_RATE_PARENT)
		return clk_core_round_rate_nolock(core->parent, req);

		req->rate = core->rate;
		return 0;
		}

		@@ -996,10 +1182,17 @@ long clk_round_rate(struct clk *clk, unsigned long rate)

		clk_prepare_lock();

		if (clk->exclusive_count)
		clk_core_rate_unprotect(clk->core);

		clk_core_get_boundaries(clk->core, &req.min_rate, &req.max_rate);
		req.rate = rate;

		ret = clk_core_round_rate_nolock(clk->core, &req);

		if (clk->exclusive_count)
		clk_core_rate_protect(clk->core);

		clk_prepare_unlock();

		if (ret)
		@@ -1432,34 +1625,23 @@ static struct clk_core clk_calc_new_rates(struct clk_core core,
		clk_core_get_boundaries(core, &min_rate, &max_rate);

		/* find the closest rate and parent clk/rate */
		if (core->ops->determine_rate) {
		if (clk_core_can_round(core)) {
		struct clk_rate_request req;

		req.rate = rate;
		req.min_rate = min_rate;
		req.max_rate = max_rate;
		if (parent) {
		req.best_parent_hw = parent->hw;
		req.best_parent_rate = parent->rate;
		} else {
		req.best_parent_hw = NULL;
		req.best_parent_rate = 0;
		}

		ret = core->ops->determine_rate(core->hw, &req);
		clk_core_init_rate_req(core, &req);

		ret = clk_core_determine_round_nolock(core, &req);
		if (ret < 0)
		return NULL;

		best_parent_rate = req.best_parent_rate;
		new_rate = req.rate;
		parent = req.best_parent_hw ? req.best_parent_hw->core : NULL;
		} else if (core->ops->round_rate) {
		ret = core->ops->round_rate(core->hw, rate,
		&best_parent_rate);
		if (ret < 0)
		return NULL;

		new_rate = ret;
		if (new_rate < min_rate \|\| new_rate > max_rate)
		return NULL;
		} else if (!parent \|\| !(core->flags & CLK_SET_RATE_PARENT)) {
		@@ -1641,25 +1823,58 @@ static void clk_change_rate(struct clk_core *core)
		clk_pm_runtime_put(core);
		}

		static unsigned long clk_core_req_round_rate_nolock(struct clk_core *core,
		unsigned long req_rate)
		{
		int ret, cnt;
		struct clk_rate_request req;

		lockdep_assert_held(&prepare_lock);

		if (!core)
		return 0;

		/* simulate what the rate would be if it could be freely set */
		cnt = clk_core_rate_nuke_protect(core);
		if (cnt < 0)
		return cnt;

		clk_core_get_boundaries(core, &req.min_rate, &req.max_rate);
		req.rate = req_rate;

		ret = clk_core_round_rate_nolock(core, &req);

		/* restore the protection */
		clk_core_rate_restore_protect(core, cnt);

		return ret ? 0 : req.rate;
		}

		static int clk_core_set_rate_nolock(struct clk_core *core,
		unsigned long req_rate)
		{
		struct clk_core top, fail_clk;
		unsigned long rate = req_rate;
		unsigned long rate;
		int ret = 0;

		if (!core)
		return 0;

		rate = clk_core_req_round_rate_nolock(core, req_rate);

		/* bail early if nothing to do */
		if (rate == clk_core_get_rate_nolock(core))
		return 0;

		/* fail on a direct rate set of a protected provider */
		if (clk_core_rate_is_protected(core))
		return -EBUSY;

		if ((core->flags & CLK_SET_RATE_GATE) && core->prepare_count)
		return -EBUSY;

		/* calculate new rates and get the topmost changed clock */
		top = clk_calc_new_rates(core, rate);
		top = clk_calc_new_rates(core, req_rate);
		if (!top)
		return -EINVAL;

		@@ -1718,14 +1933,67 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
		/* prevent racing with updates to the clock topology */
		clk_prepare_lock();

		if (clk->exclusive_count)
		clk_core_rate_unprotect(clk->core);

		ret = clk_core_set_rate_nolock(clk->core, rate);

		if (clk->exclusive_count)
		clk_core_rate_protect(clk->core);

		clk_prepare_unlock();

		return ret;
		}
		EXPORT_SYMBOL_GPL(clk_set_rate);

		/**
		* clk_set_rate_exclusive - specify a new rate get exclusive control
		* @clk: the clk whose rate is being changed
		* @rate: the new rate for clk
		*
		* This is a combination of clk_set_rate() and clk_rate_exclusive_get()
		* within a critical section
		*
		* This can be used initially to ensure that at least 1 consumer is
		* statisfied when several consumers are competing for exclusivity over the
		* same clock provider.
		*
		* The exclusivity is not applied if setting the rate failed.
		*
		* Calls to clk_rate_exclusive_get() should be balanced with calls to
		* clk_rate_exclusive_put().
		*
		* Returns 0 on success, -EERROR otherwise.
		*/
		int clk_set_rate_exclusive(struct clk *clk, unsigned long rate)
		{
		int ret;

		if (!clk)
		return 0;

		/* prevent racing with updates to the clock topology */
		clk_prepare_lock();

		/*
		* The temporary protection removal is not here, on purpose
		* This function is meant to be used instead of clk_rate_protect,
		* so before the consumer code path protect the clock provider
		*/

		ret = clk_core_set_rate_nolock(clk->core, rate);
		if (!ret) {
		clk_core_rate_protect(clk->core);
		clk->exclusive_count++;
		}

		clk_prepare_unlock();

		return ret;
		}
		EXPORT_SYMBOL_GPL(clk_set_rate_exclusive);

		/**
		* clk_set_rate_range - set a rate range for a clock source
		* @clk: clock source
		@@ -1737,6 +2005,7 @@ EXPORT_SYMBOL_GPL(clk_set_rate);
		int clk_set_rate_range(struct clk *clk, unsigned long min, unsigned long max)
		{
		int ret = 0;
		unsigned long old_min, old_max, rate;

		if (!clk)
		return 0;
		@@ -1750,11 +2019,45 @@ int clk_set_rate_range(struct clk *clk, unsigned long min, unsigned long max)

		clk_prepare_lock();

		if (min != clk->min_rate \|\| max != clk->max_rate) {
		if (clk->exclusive_count)
		clk_core_rate_unprotect(clk->core);

		/* Save the current values in case we need to rollback the change */
		old_min = clk->min_rate;
		old_max = clk->max_rate;
		clk->min_rate = min;
		clk->max_rate = max;
		ret = clk_core_set_rate_nolock(clk->core, clk->core->req_rate);

		rate = clk_core_get_rate_nolock(clk->core);
		if (rate < min \|\| rate > max) {
		/*
		* FIXME:
		* We are in bit of trouble here, current rate is outside the
		* the requested range. We are going try to request appropriate
		* range boundary but there is a catch. It may fail for the
		* usual reason (clock broken, clock protected, etc) but also
		* because:
		* - round_rate() was not favorable and fell on the wrong
		* side of the boundary
		* - the determine_rate() callback does not really check for
		* this corner case when determining the rate
		*/

		if (rate < min)
		rate = min;
		else
		rate = max;

		ret = clk_core_set_rate_nolock(clk->core, rate);
		if (ret) {
		/* rollback the changes */
		clk->min_rate = old_min;
		clk->max_rate = old_max;
		}
		}

		if (clk->exclusive_count)
		clk_core_rate_protect(clk->core);

		clk_prepare_unlock();

		@@ -1876,32 +2179,31 @@ bool clk_has_parent(struct clk clk, struct clk parent)
		}
		EXPORT_SYMBOL_GPL(clk_has_parent);

		static int clk_core_set_parent(struct clk_core core, struct clk_core parent)
		static int clk_core_set_parent_nolock(struct clk_core *core,
		struct clk_core *parent)
		{
		int ret = 0;
		int p_index = 0;
		unsigned long p_rate = 0;

		lockdep_assert_held(&prepare_lock);

		if (!core)
		return 0;

		/* prevent racing with updates to the clock topology */
		clk_prepare_lock();

		if (core->parent == parent)
		goto out;
		return 0;

		/* verify ops for for multi-parent clks */
		if ((core->num_parents > 1) && (!core->ops->set_parent)) {
		ret = -ENOSYS;
		goto out;
		}
		if (core->num_parents > 1 && !core->ops->set_parent)
		return -EPERM;

		/* check that we are allowed to re-parent if the clock is in use */
		if ((core->flags & CLK_SET_PARENT_GATE) && core->prepare_count) {
		ret = -EBUSY;
		goto out;
		}
		if ((core->flags & CLK_SET_PARENT_GATE) && core->prepare_count)
		return -EBUSY;

		if (clk_core_rate_is_protected(core))
		return -EBUSY;

		/* try finding the new parent index */
		if (parent) {
		@@ -1909,15 +2211,14 @@ static int clk_core_set_parent(struct clk_core core, struct clk_core parent)
		if (p_index < 0) {
		pr_debug("%s: clk %s can not be parent of clk %s\n",
		__func__, parent->name, core->name);
		ret = p_index;
		goto out;
		return p_index;
		}
		p_rate = parent->rate;
		}

		ret = clk_pm_runtime_get(core);
		if (ret)
		goto out;
		return ret;

		/* propagate PRE_RATE_CHANGE notifications */
		ret = __clk_speculate_rates(core, p_rate);
		@@ -1939,8 +2240,6 @@ static int clk_core_set_parent(struct clk_core core, struct clk_core parent)

		runtime_put:
		clk_pm_runtime_put(core);
		out:
		clk_prepare_unlock();

		return ret;
		}
		@@ -1964,13 +2263,50 @@ static int clk_core_set_parent(struct clk_core core, struct clk_core parent)
		*/
		int clk_set_parent(struct clk clk, struct clk parent)
		{
		int ret;

		if (!clk)
		return 0;

		return clk_core_set_parent(clk->core, parent ? parent->core : NULL);
		clk_prepare_lock();

		if (clk->exclusive_count)
		clk_core_rate_unprotect(clk->core);

		ret = clk_core_set_parent_nolock(clk->core,
		parent ? parent->core : NULL);

		if (clk->exclusive_count)
		clk_core_rate_protect(clk->core);

		clk_prepare_unlock();

		return ret;
		}
		EXPORT_SYMBOL_GPL(clk_set_parent);

		static int clk_core_set_phase_nolock(struct clk_core *core, int degrees)
		{
		int ret = -EINVAL;

		lockdep_assert_held(&prepare_lock);

		if (!core)
		return 0;

		if (clk_core_rate_is_protected(core))
		return -EBUSY;

		trace_clk_set_phase(core, degrees);

		if (core->ops->set_phase)
		ret = core->ops->set_phase(core->hw, degrees);

		trace_clk_set_phase_complete(core, degrees);

		return ret;
		}

		/**
		* clk_set_phase - adjust the phase shift of a clock signal
		* @clk: clock signal source
		@@ -1993,7 +2329,7 @@ EXPORT_SYMBOL_GPL(clk_set_parent);
		*/
		int clk_set_phase(struct clk *clk, int degrees)
		{
		int ret = -EINVAL;
		int ret;

		if (!clk)
		return 0;
		@@ -2005,15 +2341,13 @@ int clk_set_phase(struct clk *clk, int degrees)

		clk_prepare_lock();

		trace_clk_set_phase(clk->core, degrees);
		if (clk->exclusive_count)
		clk_core_rate_unprotect(clk->core);

		if (clk->core->ops->set_phase)
		ret = clk->core->ops->set_phase(clk->core->hw, degrees);
		ret = clk_core_set_phase_nolock(clk->core, degrees);

		trace_clk_set_phase_complete(clk->core, degrees);

		if (!ret)
		clk->core->phase = degrees;
		if (clk->exclusive_count)
		clk_core_rate_protect(clk->core);

		clk_prepare_unlock();

		@@ -2101,11 +2435,12 @@ static void clk_summary_show_one(struct seq_file s, struct clk_core c,
		if (!c)
		return;

		seq_printf(s, "%s%-s %11d %12d %11lu %10lu %-3d\n",
		seq_printf(s, "%s%-s %7d %8d %8d %11lu %10lu %-3d\n",
		level * 3 + 1, "",
		30 - level * 3, c->name,
		c->enable_count, c->prepare_count, clk_core_get_rate(c),
		clk_core_get_accuracy(c), clk_core_get_phase(c));
		c->enable_count, c->prepare_count, c->protect_count,
		clk_core_get_rate(c), clk_core_get_accuracy(c),
		clk_core_get_phase(c));
		}

		static void clk_summary_show_subtree(struct seq_file s, struct clk_core c,
		@@ -2127,7 +2462,8 @@ static int clk_summary_show(struct seq_file s, void data)
		struct clk_core *c;
		struct hlist_head lists = (struct hlist_head )s->private;

		seq_puts(s, " clock enable_cnt prepare_cnt rate accuracy phase\n");
		seq_puts(s, " enable prepare protect \n");
		seq_puts(s, " clock count count count rate accuracy phase\n");
		seq_puts(s, "----------------------------------------------------------------------------------------\n");

		clk_prepare_lock();
		@@ -2163,6 +2499,7 @@ static void clk_dump_one(struct seq_file s, struct clk_core c, int level)
		seq_printf(s, "\"%s\": { ", c->name);
		seq_printf(s, "\"enable_count\": %d,", c->enable_count);
		seq_printf(s, "\"prepare_count\": %d,", c->prepare_count);
		seq_printf(s, "\"protect_count\": %d,", c->protect_count);
		seq_printf(s, "\"rate\": %lu,", clk_core_get_rate(c));
		seq_printf(s, "\"accuracy\": %lu,", clk_core_get_accuracy(c));
		seq_printf(s, "\"phase\": %d", clk_core_get_phase(c));
		@@ -2293,6 +2630,11 @@ static int clk_debug_create_one(struct clk_core core, struct dentry pdentry)
		if (!d)
		goto err_out;

		d = debugfs_create_u32("clk_protect_count", S_IRUGO, core->dentry,
		(u32 *)&core->protect_count);
		if (!d)
		goto err_out;

		d = debugfs_create_u32("clk_notifier_count", S_IRUGO, core->dentry,
		(u32 *)&core->notifier_count);
		if (!d)
		@@ -2683,7 +3025,13 @@ struct clk clk_register(struct device dev, struct clk_hw *hw)
		ret = -ENOMEM;
		goto fail_name;
		}

		if (WARN_ON(!hw->init->ops)) {
		ret = -EINVAL;
		goto fail_ops;
		}
		core->ops = hw->init->ops;

		if (dev && pm_runtime_enabled(dev))
		core->dev = dev;
		if (dev && dev->driver)
		@@ -2745,6 +3093,7 @@ struct clk clk_register(struct device dev, struct clk_hw *hw)
		kfree_const(core->parent_names[i]);
		kfree(core->parent_names);
		fail_parent_names:
		fail_ops:
		kfree_const(core->name);
		fail_name:
		kfree(core);
		@@ -2856,7 +3205,7 @@ void clk_unregister(struct clk *clk)
		/* Reparent all children to the orphan list. */
		hlist_for_each_entry_safe(child, t, &clk->core->children,
		child_node)
		clk_core_set_parent(child, NULL);
		clk_core_set_parent_nolock(child, NULL);
		}

		hlist_del_init(&clk->core->child_node);
		@@ -2864,6 +3213,11 @@ void clk_unregister(struct clk *clk)
		if (clk->core->prepare_count)
		pr_warn("%s: unregistering prepared clock: %s\n",
		__func__, clk->core->name);

		if (clk->core->protect_count)
		pr_warn("%s: unregistering protected clock: %s\n",
		__func__, clk->core->name);

		kref_put(&clk->core->ref, __clk_release);
		unlock:
		clk_prepare_unlock();
		@@ -3022,6 +3376,18 @@ void __clk_put(struct clk *clk)

		clk_prepare_lock();

		/*
		* Before calling clk_put, all calls to clk_rate_exclusive_get() from a
		* given user should be balanced with calls to clk_rate_exclusive_put()
		* and by that same consumer
		*/
		if (WARN_ON(clk->exclusive_count)) {
		/* We voiced our concern, let's sanitize the situation */
		clk->core->protect_count -= (clk->exclusive_count - 1);
		clk_core_rate_unprotect(clk->core);
		clk->exclusive_count = 0;
		}

		hlist_del(&clk->clks_node);
		if (clk->min_rate > clk->core->req_rate \|\|
		clk->max_rate < clk->core->req_rate)

drivers/clk/qcom/clk-alpha-pll.c

+423 −93

File changed.

Preview size limit exceeded, changes collapsed.

drivers/clk/qcom/clk-alpha-pll.h

+34 −1

Original line number	Diff line number	Diff line
		@@ -17,6 +17,30 @@
		#include <linux/clk-provider.h>
		#include "clk-regmap.h"

		/* Alpha PLL types */
		enum {
		CLK_ALPHA_PLL_TYPE_DEFAULT,
		CLK_ALPHA_PLL_TYPE_HUAYRA,
		CLK_ALPHA_PLL_TYPE_BRAMMO,
		CLK_ALPHA_PLL_TYPE_MAX,
		};

		enum {
		PLL_OFF_L_VAL,
		PLL_OFF_ALPHA_VAL,
		PLL_OFF_ALPHA_VAL_U,
		PLL_OFF_USER_CTL,
		PLL_OFF_USER_CTL_U,
		PLL_OFF_CONFIG_CTL,
		PLL_OFF_CONFIG_CTL_U,
		PLL_OFF_TEST_CTL,
		PLL_OFF_TEST_CTL_U,
		PLL_OFF_STATUS,
		PLL_OFF_MAX_REGS
		};

		extern const u8 clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_MAX][PLL_OFF_MAX_REGS];

		struct pll_vco {
		unsigned long min_freq;
		unsigned long max_freq;
		@@ -27,16 +51,18 @@ struct pll_vco {
		* struct clk_alpha_pll - phase locked loop (PLL)
		* @offset: base address of registers
		* @vco_table: array of VCO settings
		* @regs: alpha pll register map (see @clk_alpha_pll_regs)
		* @clkr: regmap clock handle
		*/
		struct clk_alpha_pll {
		u32 offset;
		const u8 *regs;

		const struct pll_vco *vco_table;
		size_t num_vco;
		#define SUPPORTS_OFFLINE_REQ BIT(0)
		#define SUPPORTS_16BIT_ALPHA BIT(1)
		#define SUPPORTS_FSM_MODE BIT(2)
		#define SUPPORTS_DYNAMIC_UPDATE BIT(3)
		u8 flags;

		struct clk_regmap clkr;
		@@ -45,12 +71,14 @@ struct clk_alpha_pll {
		/**
		* struct clk_alpha_pll_postdiv - phase locked loop (PLL) post-divider
		* @offset: base address of registers
		* @regs: alpha pll register map (see @clk_alpha_pll_regs)
		* @width: width of post-divider
		* @clkr: regmap clock handle
		*/
		struct clk_alpha_pll_postdiv {
		u32 offset;
		u8 width;
		const u8 *regs;

		struct clk_regmap clkr;
		};
		@@ -58,12 +86,15 @@ struct clk_alpha_pll_postdiv {
		struct alpha_pll_config {
		u32 l;
		u32 alpha;
		u32 alpha_hi;
		u32 config_ctl_val;
		u32 config_ctl_hi_val;
		u32 main_output_mask;
		u32 aux_output_mask;
		u32 aux2_output_mask;
		u32 early_output_mask;
		u32 alpha_en_mask;
		u32 alpha_mode_mask;
		u32 pre_div_val;
		u32 pre_div_mask;
		u32 post_div_val;
		@@ -75,6 +106,8 @@ struct alpha_pll_config {
		extern const struct clk_ops clk_alpha_pll_ops;
		extern const struct clk_ops clk_alpha_pll_hwfsm_ops;
		extern const struct clk_ops clk_alpha_pll_postdiv_ops;
		extern const struct clk_ops clk_alpha_pll_huayra_ops;
		extern const struct clk_ops clk_alpha_pll_postdiv_ro_ops;

		void clk_alpha_pll_configure(struct clk_alpha_pll pll, struct regmap regmap,
		const struct alpha_pll_config *config);

drivers/clk/qcom/gcc-ipq8074.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -52,6 +52,7 @@ static const struct parent_map gcc_xo_gpll0_gpll0_out_main_div2_map[] = {

		static struct clk_alpha_pll gpll0_main = {
		.offset = 0x21000,
		.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_DEFAULT],
		.clkr = {
		.enable_reg = 0x0b000,
		.enable_mask = BIT(0),
		@@ -82,6 +83,7 @@ static struct clk_fixed_factor gpll0_out_main_div2 = {

		static struct clk_alpha_pll_postdiv gpll0 = {
		.offset = 0x21000,
		.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_DEFAULT],
		.clkr.hw.init = &(struct clk_init_data){
		.name = "gpll0",
		.parent_names = (const char *[]){

drivers/clk/qcom/gcc-msm8994.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -73,6 +73,7 @@ static struct clk_fixed_factor xo = {

		static struct clk_alpha_pll gpll0_early = {
		.offset = 0x00000,
		.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_DEFAULT],
		.clkr = {
		.enable_reg = 0x1480,
		.enable_mask = BIT(0),
		@@ -88,6 +89,7 @@ static struct clk_alpha_pll gpll0_early = {

		static struct clk_alpha_pll_postdiv gpll0 = {
		.offset = 0x00000,
		.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_DEFAULT],
		.clkr.hw.init = &(struct clk_init_data)
		{
		.name = "gpll0",
		@@ -99,6 +101,7 @@ static struct clk_alpha_pll_postdiv gpll0 = {

		static struct clk_alpha_pll gpll4_early = {
		.offset = 0x1dc0,
		.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_DEFAULT],
		.clkr = {
		.enable_reg = 0x1480,
		.enable_mask = BIT(4),
		@@ -114,6 +117,7 @@ static struct clk_alpha_pll gpll4_early = {

		static struct clk_alpha_pll_postdiv gpll4 = {
		.offset = 0x1dc0,
		.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_DEFAULT],
		.clkr.hw.init = &(struct clk_init_data)
		{
		.name = "gpll4",