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Date: Thu, 05 May 2016 14:34:19 +0200
From: Krzysztof Kozlowski <k.kozlowski@...sung.com>
To: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-samsung-soc@...r.kernel.org, linux-mmc@...r.kernel.org,
linux-pm@...r.kernel.org, linux-usb@...r.kernel.org,
Ulf Hansson <ulf.hansson@...aro.org>,
Sebastian Reichel <sre@...nel.org>,
Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
David Woodhouse <dwmw2@...radead.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Mark Brown <broonie@...nel.org>
Cc: tjakobi@...h.uni-bielefeld.de, m.szyprowski@...sung.com,
hverkuil@...all.nl, Krzysztof Kozlowski <k.kozlowski@...sung.com>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Subject: [RFC v2 06/13] power: pwrseq: Generalize mmc_pwrseq operations by
removing mmc prefix
The power sequence hooks (mmc_pwrseq_pre_power_on(),
mmc_pwrseq_post_power_on() and mmc_pwrseq_power_off()) can be made more
generic to allow re-use in other subsystems. They do not need to take
pointer to struct mmc_host but instead the struct pwrseq should be
sufficient.
Remove the "mmc" prefix and use the pointer to struct pwrseq as
argument.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
---
drivers/mmc/core/core.c | 6 +++---
drivers/power/pwrseq/pwrseq.c | 24 +++++++++---------------
drivers/power/pwrseq/pwrseq_emmc.c | 4 ++--
drivers/power/pwrseq/pwrseq_simple.c | 12 ++++++------
include/linux/pwrseq.h | 18 +++++++++---------
5 files changed, 29 insertions(+), 35 deletions(-)
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 0f145ff6e4f1..dfc4681054a8 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -1719,7 +1719,7 @@ void mmc_power_up(struct mmc_host *host, u32 ocr)
if (host->ios.power_mode == MMC_POWER_ON)
return;
- mmc_pwrseq_pre_power_on(host);
+ pwrseq_pre_power_on(host->pwrseq);
host->ios.vdd = fls(ocr) - 1;
host->ios.power_mode = MMC_POWER_UP;
@@ -1740,7 +1740,7 @@ void mmc_power_up(struct mmc_host *host, u32 ocr)
*/
mmc_delay(10);
- mmc_pwrseq_post_power_on(host);
+ pwrseq_post_power_on(host->pwrseq);
host->ios.clock = host->f_init;
@@ -1759,7 +1759,7 @@ void mmc_power_off(struct mmc_host *host)
if (host->ios.power_mode == MMC_POWER_OFF)
return;
- mmc_pwrseq_power_off(host);
+ pwrseq_power_off(host->pwrseq);
host->ios.clock = 0;
host->ios.vdd = 0;
diff --git a/drivers/power/pwrseq/pwrseq.c b/drivers/power/pwrseq/pwrseq.c
index 9c665821f890..495a19d3c30b 100644
--- a/drivers/power/pwrseq/pwrseq.c
+++ b/drivers/power/pwrseq/pwrseq.c
@@ -52,32 +52,26 @@ int mmc_pwrseq_alloc(struct mmc_host *host)
}
EXPORT_SYMBOL_GPL(mmc_pwrseq_alloc);
-void mmc_pwrseq_pre_power_on(struct mmc_host *host)
+void pwrseq_pre_power_on(struct pwrseq *pwrseq)
{
- struct pwrseq *pwrseq = host->pwrseq;
-
if (pwrseq && pwrseq->ops->pre_power_on)
- pwrseq->ops->pre_power_on(host);
+ pwrseq->ops->pre_power_on(pwrseq);
}
-EXPORT_SYMBOL_GPL(mmc_pwrseq_pre_power_on);
+EXPORT_SYMBOL_GPL(pwrseq_pre_power_on);
-void mmc_pwrseq_post_power_on(struct mmc_host *host)
+void pwrseq_post_power_on(struct pwrseq *pwrseq)
{
- struct pwrseq *pwrseq = host->pwrseq;
-
if (pwrseq && pwrseq->ops->post_power_on)
- pwrseq->ops->post_power_on(host);
+ pwrseq->ops->post_power_on(pwrseq);
}
-EXPORT_SYMBOL_GPL(mmc_pwrseq_post_power_on);
+EXPORT_SYMBOL_GPL(pwrseq_post_power_on);
-void mmc_pwrseq_power_off(struct mmc_host *host)
+void pwrseq_power_off(struct pwrseq *pwrseq)
{
- struct pwrseq *pwrseq = host->pwrseq;
-
if (pwrseq && pwrseq->ops->power_off)
- pwrseq->ops->power_off(host);
+ pwrseq->ops->power_off(pwrseq);
}
-EXPORT_SYMBOL_GPL(mmc_pwrseq_power_off);
+EXPORT_SYMBOL_GPL(pwrseq_power_off);
void mmc_pwrseq_free(struct mmc_host *host)
{
diff --git a/drivers/power/pwrseq/pwrseq_emmc.c b/drivers/power/pwrseq/pwrseq_emmc.c
index a68ac9a68e04..82327d0223f2 100644
--- a/drivers/power/pwrseq/pwrseq_emmc.c
+++ b/drivers/power/pwrseq/pwrseq_emmc.c
@@ -37,9 +37,9 @@ static void __mmc_pwrseq_emmc_reset(struct mmc_pwrseq_emmc *pwrseq)
udelay(200);
}
-static void mmc_pwrseq_emmc_reset(struct mmc_host *host)
+static void mmc_pwrseq_emmc_reset(struct pwrseq *_pwrseq)
{
- struct mmc_pwrseq_emmc *pwrseq = to_pwrseq_emmc(host->pwrseq);
+ struct mmc_pwrseq_emmc *pwrseq = to_pwrseq_emmc(_pwrseq);
__mmc_pwrseq_emmc_reset(pwrseq);
}
diff --git a/drivers/power/pwrseq/pwrseq_simple.c b/drivers/power/pwrseq/pwrseq_simple.c
index d5fbd653153e..ab0098412690 100644
--- a/drivers/power/pwrseq/pwrseq_simple.c
+++ b/drivers/power/pwrseq/pwrseq_simple.c
@@ -46,9 +46,9 @@ static void mmc_pwrseq_simple_set_gpios_value(struct mmc_pwrseq_simple *pwrseq,
}
}
-static void mmc_pwrseq_simple_pre_power_on(struct mmc_host *host)
+static void mmc_pwrseq_simple_pre_power_on(struct pwrseq *_pwrseq)
{
- struct mmc_pwrseq_simple *pwrseq = to_pwrseq_simple(host->pwrseq);
+ struct mmc_pwrseq_simple *pwrseq = to_pwrseq_simple(_pwrseq);
if (!IS_ERR(pwrseq->ext_clk) && !pwrseq->clk_enabled) {
clk_prepare_enable(pwrseq->ext_clk);
@@ -58,16 +58,16 @@ static void mmc_pwrseq_simple_pre_power_on(struct mmc_host *host)
mmc_pwrseq_simple_set_gpios_value(pwrseq, 1);
}
-static void mmc_pwrseq_simple_post_power_on(struct mmc_host *host)
+static void mmc_pwrseq_simple_post_power_on(struct pwrseq *_pwrseq)
{
- struct mmc_pwrseq_simple *pwrseq = to_pwrseq_simple(host->pwrseq);
+ struct mmc_pwrseq_simple *pwrseq = to_pwrseq_simple(_pwrseq);
mmc_pwrseq_simple_set_gpios_value(pwrseq, 0);
}
-static void mmc_pwrseq_simple_power_off(struct mmc_host *host)
+static void mmc_pwrseq_simple_power_off(struct pwrseq *_pwrseq)
{
- struct mmc_pwrseq_simple *pwrseq = to_pwrseq_simple(host->pwrseq);
+ struct mmc_pwrseq_simple *pwrseq = to_pwrseq_simple(_pwrseq);
mmc_pwrseq_simple_set_gpios_value(pwrseq, 1);
diff --git a/include/linux/pwrseq.h b/include/linux/pwrseq.h
index 6d2d2a44ad35..fcc8fd855d4c 100644
--- a/include/linux/pwrseq.h
+++ b/include/linux/pwrseq.h
@@ -11,9 +11,9 @@
#include <linux/mmc/host.h>
struct pwrseq_ops {
- void (*pre_power_on)(struct mmc_host *host);
- void (*post_power_on)(struct mmc_host *host);
- void (*power_off)(struct mmc_host *host);
+ void (*pre_power_on)(struct pwrseq *pwrseq);
+ void (*post_power_on)(struct pwrseq *pwrseq);
+ void (*power_off)(struct pwrseq *pwrseq);
};
struct pwrseq {
@@ -28,10 +28,10 @@ struct pwrseq {
int pwrseq_register(struct pwrseq *pwrseq);
void pwrseq_unregister(struct pwrseq *pwrseq);
+void pwrseq_pre_power_on(struct pwrseq *pwrseq);
+void pwrseq_post_power_on(struct pwrseq *pwrseq);
+void pwrseq_power_off(struct pwrseq *pwrseq);
int mmc_pwrseq_alloc(struct mmc_host *host);
-void mmc_pwrseq_pre_power_on(struct mmc_host *host);
-void mmc_pwrseq_post_power_on(struct mmc_host *host);
-void mmc_pwrseq_power_off(struct mmc_host *host);
void mmc_pwrseq_free(struct mmc_host *host);
#else /* CONFIG_POWER_SEQ */
@@ -41,10 +41,10 @@ static inline int pwrseq_register(struct pwrseq *pwrseq)
return -ENOSYS;
}
static inline void pwrseq_unregister(struct pwrseq *pwrseq) {}
+static inline void pwrseq_pre_power_on(struct pwrseq *pwrseq) {}
+static inline void pwrseq_post_power_on(struct pwrseq *pwrseq) {}
+static inline void pwrseq_power_off(struct pwrseq *pwrseq) {}
static inline int mmc_pwrseq_alloc(struct mmc_host *host) { return 0; }
-static inline void mmc_pwrseq_pre_power_on(struct mmc_host *host) {}
-static inline void mmc_pwrseq_post_power_on(struct mmc_host *host) {}
-static inline void mmc_pwrseq_power_off(struct mmc_host *host) {}
static inline void mmc_pwrseq_free(struct mmc_host *host) {}
#endif /* CONFIG_POWER_SEQ */
--
1.9.1
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