Merge "mmc: core: Add retuning to cmdq path" (5b8c48ad) · Commits · e / devices / android_kernel_sony_msm8998

drivers/mmc/core/core.c

+41 −0

Original line number	Diff line number	Diff line
		@@ -1170,6 +1170,46 @@ static int mmc_start_request(struct mmc_host host, struct mmc_request mrq)
		return 0;
		}

		static int mmc_cmdq_check_retune(struct mmc_host *host)
		{
		bool cmdq_mode;
		int err = 0;

		if (!host->need_retune \|\| host->doing_retune \|\| !host->card \|\|
		mmc_card_hs400es(host->card) \|\|
		(host->ios.clock <= MMC_HIGH_DDR_MAX_DTR))
		return 0;

		cmdq_mode = mmc_card_cmdq(host->card);
		if (cmdq_mode) {
		err = mmc_cmdq_halt(host, true);
		if (err) {
		pr_err("%s: %s: failed halting queue (%d)\n",
		mmc_hostname(host), __func__, err);
		host->cmdq_ops->dumpstate(host);
		goto halt_failed;
		}
		}

		mmc_retune_hold(host);
		err = mmc_retune(host);
		mmc_retune_release(host);

		if (cmdq_mode) {
		if (mmc_cmdq_halt(host, false)) {
		pr_err("%s: %s: cmdq unhalt failed\n",
		mmc_hostname(host), __func__);
		host->cmdq_ops->dumpstate(host);
		}
		}

		halt_failed:
		pr_debug("%s: %s: Retuning done err: %d\n",
		mmc_hostname(host), __func__, err);

		return err;
		}

		static int mmc_start_cmdq_request(struct mmc_host *host,
		struct mmc_request *mrq)
		{
		@@ -1196,6 +1236,7 @@ static int mmc_start_cmdq_request(struct mmc_host *host,
		}

		mmc_host_clk_hold(host);
		mmc_cmdq_check_retune(host);
		if (likely(host->cmdq_ops->request)) {
		ret = host->cmdq_ops->request(host, mrq);
		} else {

+2 −1

Original line number	Diff line number	Diff line
		@@ -388,7 +388,8 @@ int mmc_retune(struct mmc_host *host)
		else
		return 0;

		if (!host->need_retune \|\| host->doing_retune \|\| !host->card)
		if (!host->need_retune \|\| host->doing_retune \|\| !host->card \|\|
		mmc_card_hs400es(host->card))
		return 0;

		host->need_retune = 0;