lkml.org 
[lkml]   [2018]   [Dec]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 2/4] mmc: meson-gx: remove useless lock
Date
The spinlock is only used within the irq handler so it does not
seem very useful.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
---
drivers/mmc/host/meson-gx-mmc.c | 7 -------
1 file changed, 7 deletions(-)

diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c
index fcb5d693c897..5cc31e434ca1 100644
--- a/drivers/mmc/host/meson-gx-mmc.c
+++ b/drivers/mmc/host/meson-gx-mmc.c
@@ -26,7 +26,6 @@
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/ioport.h>
-#include <linux/spinlock.h>
#include <linux/dma-mapping.h>
#include <linux/mmc/host.h>
#include <linux/mmc/mmc.h>
@@ -159,7 +158,6 @@ struct meson_host {
struct mmc_host *mmc;
struct mmc_command *cmd;

- spinlock_t lock;
void __iomem *regs;
struct clk *core_clk;
struct clk *mmc_clk;
@@ -1040,8 +1038,6 @@ static irqreturn_t meson_mmc_irq(int irq, void *dev_id)
if (WARN_ON(!host) || WARN_ON(!host->cmd))
return IRQ_NONE;

- spin_lock(&host->lock);
-
cmd = host->cmd;
data = cmd->data;
cmd->error = 0;
@@ -1091,7 +1087,6 @@ static irqreturn_t meson_mmc_irq(int irq, void *dev_id)
if (ret == IRQ_HANDLED)
meson_mmc_request_done(host->mmc, cmd->mrq);

- spin_unlock(&host->lock);
return ret;
}

@@ -1244,8 +1239,6 @@ static int meson_mmc_probe(struct platform_device *pdev)
host->dev = &pdev->dev;
dev_set_drvdata(&pdev->dev, host);

- spin_lock_init(&host->lock);
-
/* Get regulators and the supported OCR mask */
host->vqmmc_enabled = false;
ret = mmc_regulator_get_supply(mmc);
--
2.19.2
\
 
 \ /
  Last update: 2018-12-06 16:19    [W:0.056 / U:0.972 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site