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From: Douglas Anderson <dianders@chromium.org>
To: Andy Gross <agross@kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Maulik Shah <mkshah@codeaurora.org>
Cc: swboyd@chromium.org, mka@chromium.org,
	Rajendra Nayak <rnayak@codeaurora.org>,
	evgreen@chromium.org, Lina Iyer <ilina@codeaurora.org>,
	Douglas Anderson <dianders@chromium.org>,
	linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v4 10/10] drivers: qcom: rpmh-rsc: read_tcs_reg()/write_tcs_reg() are not for IRQ
Date: Mon, 13 Apr 2020 10:04:15 -0700	[thread overview]
Message-ID: <20200413100321.v4.10.I2adf93809c692d0b673e1a86ea97c45644aa8d97@changeid> (raw)
In-Reply-To: <20200413170415.32463-1-dianders@chromium.org>

The RSC_DRV_IRQ_ENABLE, RSC_DRV_IRQ_STATUS, and RSC_DRV_IRQ_CLEAR
registers are not part of TCS 0.  Let's not pretend that they are by
using read_tcs_reg() and write_tcs_reg() and passing a bogus tcs_id of
0.  We could introduce a new wrapper for these registers but it
wouldn't buy us much.  Let's just read/write directly.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Maulik Shah <mkshah@codeaurora.org>
Tested-by: Maulik Shah <mkshah@codeaurora.org>
---

Changes in v4: None
Changes in v3:
- ("...are not for IRQ") is new for v3.

Changes in v2: None

 drivers/soc/qcom/rpmh-rsc.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/soc/qcom/rpmh-rsc.c b/drivers/soc/qcom/rpmh-rsc.c
index 9bd0c7c3db7c..3c77a0eed90d 100644
--- a/drivers/soc/qcom/rpmh-rsc.c
+++ b/drivers/soc/qcom/rpmh-rsc.c
@@ -363,12 +363,12 @@ static void enable_tcs_irq(struct rsc_drv *drv, int tcs_id, bool enable)
 {
 	u32 data;
 
-	data = read_tcs_reg(drv, RSC_DRV_IRQ_ENABLE, 0);
+	data = readl_relaxed(drv->tcs_base + RSC_DRV_IRQ_ENABLE);
 	if (enable)
 		data |= BIT(tcs_id);
 	else
 		data &= ~BIT(tcs_id);
-	write_tcs_reg(drv, RSC_DRV_IRQ_ENABLE, 0, data);
+	writel_relaxed(data, drv->tcs_base + RSC_DRV_IRQ_ENABLE);
 }
 
 /**
@@ -389,7 +389,7 @@ static irqreturn_t tcs_tx_done(int irq, void *p)
 	const struct tcs_request *req;
 	struct tcs_cmd *cmd;
 
-	irq_status = read_tcs_reg(drv, RSC_DRV_IRQ_STATUS, 0);
+	irq_status = readl_relaxed(drv->tcs_base + RSC_DRV_IRQ_STATUS);
 
 	for_each_set_bit(i, &irq_status, BITS_PER_LONG) {
 		req = get_req_from_tcs(drv, i);
@@ -426,7 +426,7 @@ static irqreturn_t tcs_tx_done(int irq, void *p)
 		/* Reclaim the TCS */
 		write_tcs_reg(drv, RSC_DRV_CMD_ENABLE, i, 0);
 		write_tcs_reg(drv, RSC_DRV_CMD_WAIT_FOR_CMPL, i, 0);
-		write_tcs_reg(drv, RSC_DRV_IRQ_CLEAR, 0, BIT(i));
+		writel_relaxed(BIT(i), drv->tcs_base + RSC_DRV_IRQ_CLEAR);
 		spin_lock(&drv->lock);
 		clear_bit(i, drv->tcs_in_use);
 		/*
@@ -968,7 +968,8 @@ static int rpmh_rsc_probe(struct platform_device *pdev)
 	}
 
 	/* Enable the active TCS to send requests immediately */
-	write_tcs_reg(drv, RSC_DRV_IRQ_ENABLE, 0, drv->tcs[ACTIVE_TCS].mask);
+	writel_relaxed(drv->tcs[ACTIVE_TCS].mask,
+		       drv->tcs_base + RSC_DRV_IRQ_ENABLE);
 
 	spin_lock_init(&drv->client.cache_lock);
 	INIT_LIST_HEAD(&drv->client.cache);
-- 
2.26.0.110.g2183baf09c-goog


  parent reply	other threads:[~2020-04-13 17:05 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-13 17:04 [PATCH v4 00/10] drivers: qcom: rpmh-rsc: Cleanup / add lots of comments Douglas Anderson
2020-04-13 17:04 ` [PATCH v4 01/10] drivers: qcom: rpmh-rsc: Clean code reading/writing TCS regs/cmds Douglas Anderson
2020-04-13 18:19   ` Joe Perches
2020-04-13 21:18     ` Doug Anderson
2020-04-13 21:33       ` Joe Perches
2020-04-14 17:43         ` Doug Anderson
2020-04-13 21:20   ` Stephen Boyd
2020-04-13 17:04 ` [PATCH v4 02/10] drivers: qcom: rpmh-rsc: Document the register layout better Douglas Anderson
2020-04-13 21:23   ` Stephen Boyd
2020-04-13 17:04 ` [PATCH v4 03/10] drivers: qcom: rpmh-rsc: Fold tcs_ctrl_write() into its single caller Douglas Anderson
2020-04-13 21:36   ` Stephen Boyd
2020-04-13 17:04 ` [PATCH v4 04/10] drivers: qcom: rpmh-rsc: Remove get_tcs_of_type() abstraction Douglas Anderson
2020-04-13 21:37   ` Stephen Boyd
2020-04-13 17:04 ` [PATCH v4 05/10] drivers: qcom: rpmh-rsc: Kill cmd_cache and find_match() with fire Douglas Anderson
2020-04-13 21:41   ` Stephen Boyd
2020-04-13 17:04 ` [PATCH v4 06/10] drivers: qcom: rpmh-rsc: A lot of comments Douglas Anderson
2020-04-13 21:58   ` Stephen Boyd
2020-04-13 17:04 ` [PATCH v4 07/10] drivers: qcom: rpmh-rsc: tcs_is_free() can just check tcs_in_use Douglas Anderson
2020-04-13 21:58   ` Stephen Boyd
2020-04-13 17:04 ` [PATCH v4 08/10] drivers: qcom: rpmh-rsc: Don't double-check rpmh payload Douglas Anderson
2020-04-13 23:02   ` Stephen Boyd
2020-04-13 17:04 ` [PATCH v4 09/10] drivers: qcom: rpmh-rsc: Caller handles tcs_invalidate() exclusivity Douglas Anderson
2020-04-13 23:03   ` Stephen Boyd
2020-04-13 17:04 ` Douglas Anderson [this message]
2020-04-13 23:03   ` [PATCH v4 10/10] drivers: qcom: rpmh-rsc: read_tcs_reg()/write_tcs_reg() are not for IRQ Stephen Boyd
2020-04-14  5:28 ` [PATCH v4 00/10] drivers: qcom: rpmh-rsc: Cleanup / add lots of comments Bjorn Andersson

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