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Commit 6dbd8ebf authored by Ritesh Harjani's avatar Ritesh Harjani Committed by Gerrit - the friendly Code Review server
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mmc: Enable clock gating for cmdq 



Enable clock gating for cmdq by adding respective
API to clk hold/release. CMDQ also uses the same
legacy clock gating API.

Change-Id: I3d4f28cedb24ff2292ab08bdd7470358cf134dd5
Signed-off-by: default avatarRitesh Harjani <riteshh@codeaurora.org>
parent 7b2f8372

drivers/mmc/card/block.c

+3 −0
Original line number Diff line number Diff line
@@ -2797,7 +2797,9 @@ static void mmc_blk_cmdq_reset(struct mmc_host *host, bool clear_all) 
		mmc_cmdq_discard_queue(host, 0);

reset:

	mmc_hw_reset(host);

	mmc_host_clk_hold(host);

	host->cmdq_ops->reset(host, true);

	mmc_host_clk_release(host);

	clear_bit(CMDQ_STATE_HALT, &host->cmdq_ctx.curr_state);

}
@@ -2988,6 +2990,7 @@ void mmc_blk_cmdq_req_done(struct mmc_request *mrq) 
{

	struct request *req = mrq->req;



	mmc_host_clk_release(mrq->host);

	blk_complete_request(req);

}

EXPORT_SYMBOL(mmc_blk_cmdq_req_done);

drivers/mmc/core/core.c

+3 −3
Original line number Diff line number Diff line
@@ -1147,7 +1147,6 @@ void mmc_cmdq_post_req(struct mmc_host *host, struct mmc_request *mrq, int err) 
{

	if (likely(host->cmdq_ops->post_req))

		host->cmdq_ops->post_req(host, mrq, err);

	mmc_host_clk_release(host);

}

EXPORT_SYMBOL(mmc_cmdq_post_req);
@@ -1169,7 +1168,7 @@ int mmc_cmdq_halt(struct mmc_host *host, bool halt) 
	if ((halt && mmc_host_halt(host)) ||

	    (!halt && !mmc_host_halt(host)))

		return -EINVAL;



	mmc_host_clk_hold(host);

	if (host->cmdq_ops->halt) {

		err = host->cmdq_ops->halt(host, halt);

		if (!err && halt)
@@ -1179,7 +1178,7 @@ int mmc_cmdq_halt(struct mmc_host *host, bool halt) 
	} else {

		err = -ENOSYS;

	}



	mmc_host_clk_release(host);

	return err;

}

EXPORT_SYMBOL(mmc_cmdq_halt);
@@ -1200,6 +1199,7 @@ EXPORT_SYMBOL(mmc_cmdq_start_req); 


static void mmc_cmdq_dcmd_req_done(struct mmc_request *mrq)

{

	mmc_host_clk_release(mrq->host);

	complete(&mrq->completion);

}