[ALPS05479506] clock buffer: add cap id properity (af129fb8) · Commits · e / devices / android_kernel_teracube_mt6765

drivers/misc/mediatek/clkbuf/src/mtk-clkbuf-hw.c

+40 −0

Original line number	Diff line number	Diff line
		@@ -129,6 +129,7 @@ static struct dts_predef clkbuf_dts[DTS_NUM] = {
		[XO_HW_SEL] = {"pmic-xo-mode", 7, 0, 0x3, 0},

		[BBL_SW_EN] = {"pmic-bblpm-sw", 1, 0, 0x1, 0},
		[DEF_CAP_ID] = {"pmic-default-capid", 1, 0, 0xff, 0},

		[MISC_SRCLKENI_EN] = {"pmic-srclkeni3", 1, 0, 0x1, 0},

		@@ -1012,15 +1013,54 @@ static ssize_t clk_buf_bblpm_show(struct kobject *kobj,
		return len;
		}

		static u32 default_cap_id = 0x55;
		static ssize_t clk_buf_capid_store(struct kobject *kobj,
		struct kobj_attribute attr, const char buf, size_t count)
		{
		u32 cap_id = 0;

		if ((kstrtouint(buf, 10, &cap_id))) {
		pr_info("cap id input error\n");
		return -EPERM;
		}

		pr_info("cap id input (%d)\n", cap_id);
		if (cap_id < 256) {
		if (default_cap_id == 0x55)
		clkbuf_read(DEF_CAP_ID, 0, &default_cap_id);

		clkbuf_update(DEF_CAP_ID, 0, cap_id);
		} else {
		return -EPERM;
		}

		return count;
		}

		static ssize_t clk_buf_capid_show(struct kobject *kobj,
		struct kobj_attribute attr, char buf)
		{
		u32 cap_id = 0;
		int len = 0;

		clkbuf_read(DEF_CAP_ID, 0, &cap_id);
		pr_info("default cap id(%#x), cap id(%#x)\n", default_cap_id, cap_id);
		len = snprintf(buf, PAGE_SIZE, "default cap id(%#x), cap id(%#x)\n",
		default_cap_id, cap_id);
		return len;
		}

		DEFINE_ATTR_RW(clk_buf_ctrl);
		DEFINE_ATTR_RW(clk_buf_debug);
		DEFINE_ATTR_RW(clk_buf_bblpm);
		DEFINE_ATTR_RW(clk_buf_capid);

		static struct attribute *clk_buf_attrs[] = {
		/* for clock buffer control */
		__ATTR_OF(clk_buf_ctrl),
		__ATTR_OF(clk_buf_debug),
		__ATTR_OF(clk_buf_bblpm),
		__ATTR_OF(clk_buf_capid),

		/* must */
		NULL,

+1 −0