* [PATCH v2 0/4] mmc: sdhci: refactor PM in sdhci-pltfm add support PM for cadence port
@ 2017-08-03 1:44 ` Masahiro Yamada
0 siblings, 0 replies; 17+ messages in thread
From: Masahiro Yamada @ 2017-08-03 1:44 UTC (permalink / raw)
To: linux-mmc
Cc: Piotr Sroka, Adrian Hunter, Masahiro Yamada, Al Cooper,
linux-kernel, Brian Norris, bcm-kernel-feedback-list, Barry Song,
Florian Fainelli, Gregory Fong, linux-arm-kernel, Ulf Hansson
[1] adds clk handling for suspend/resume hooks of sdhci-pltfm.
This also cleans up sdhci-brcmstb.c and sdhci-sirf.c
[2] Drop unneeded #ifdef CONFIG_PM, which will be used by [4]
[3] exports suspend / resume, which will be used by [4]
[4] implements suspend / resume for sdhci-cadence.c
Masahiro Yamada (4):
mmc: sdhci: enable/disable the clock in sdhci_pltfm_suspend/resume
mmc: sdhci: remove #indef CONFIG_PM around function declarations
mmc: sdhci-pltfm: export sdhci_pltfm_suspend/resume
mmc: sdhci-cadence: add suspend / resume support
drivers/mmc/host/sdhci-brcmstb.c | 37 +------------------
drivers/mmc/host/sdhci-cadence.c | 77 +++++++++++++++++++++++++++++++++++-----
drivers/mmc/host/sdhci-pltfm.c | 22 ++++++++++--
drivers/mmc/host/sdhci-pltfm.h | 2 ++
drivers/mmc/host/sdhci-sirf.c | 39 +-------------------
drivers/mmc/host/sdhci.h | 4 ---
6 files changed, 91 insertions(+), 90 deletions(-)
--
2.7.4
^ permalink raw reply [flat|nested] 17+ messages in thread
* [PATCH v2 0/4] mmc: sdhci: refactor PM in sdhci-pltfm add support PM for cadence port
@ 2017-08-03 1:44 ` Masahiro Yamada
0 siblings, 0 replies; 17+ messages in thread
From: Masahiro Yamada @ 2017-08-03 1:44 UTC (permalink / raw)
To: linux-mmc
Cc: Barry Song, Florian Fainelli, Al Cooper, Adrian Hunter,
linux-kernel, Masahiro Yamada, bcm-kernel-feedback-list,
Gregory Fong, Ulf Hansson, Brian Norris, linux-arm-kernel,
Piotr Sroka
[1] adds clk handling for suspend/resume hooks of sdhci-pltfm.
This also cleans up sdhci-brcmstb.c and sdhci-sirf.c
[2] Drop unneeded #ifdef CONFIG_PM, which will be used by [4]
[3] exports suspend / resume, which will be used by [4]
[4] implements suspend / resume for sdhci-cadence.c
Masahiro Yamada (4):
mmc: sdhci: enable/disable the clock in sdhci_pltfm_suspend/resume
mmc: sdhci: remove #indef CONFIG_PM around function declarations
mmc: sdhci-pltfm: export sdhci_pltfm_suspend/resume
mmc: sdhci-cadence: add suspend / resume support
drivers/mmc/host/sdhci-brcmstb.c | 37 +------------------
drivers/mmc/host/sdhci-cadence.c | 77 +++++++++++++++++++++++++++++++++++-----
drivers/mmc/host/sdhci-pltfm.c | 22 ++++++++++--
drivers/mmc/host/sdhci-pltfm.h | 2 ++
drivers/mmc/host/sdhci-sirf.c | 39 +-------------------
drivers/mmc/host/sdhci.h | 4 ---
6 files changed, 91 insertions(+), 90 deletions(-)
--
2.7.4
^ permalink raw reply [flat|nested] 17+ messages in thread
* [PATCH v2 0/4] mmc: sdhci: refactor PM in sdhci-pltfm add support PM for cadence port
@ 2017-08-03 1:44 ` Masahiro Yamada
0 siblings, 0 replies; 17+ messages in thread
From: Masahiro Yamada @ 2017-08-03 1:44 UTC (permalink / raw)
To: linux-arm-kernel
[1] adds clk handling for suspend/resume hooks of sdhci-pltfm.
This also cleans up sdhci-brcmstb.c and sdhci-sirf.c
[2] Drop unneeded #ifdef CONFIG_PM, which will be used by [4]
[3] exports suspend / resume, which will be used by [4]
[4] implements suspend / resume for sdhci-cadence.c
Masahiro Yamada (4):
mmc: sdhci: enable/disable the clock in sdhci_pltfm_suspend/resume
mmc: sdhci: remove #indef CONFIG_PM around function declarations
mmc: sdhci-pltfm: export sdhci_pltfm_suspend/resume
mmc: sdhci-cadence: add suspend / resume support
drivers/mmc/host/sdhci-brcmstb.c | 37 +------------------
drivers/mmc/host/sdhci-cadence.c | 77 +++++++++++++++++++++++++++++++++++-----
drivers/mmc/host/sdhci-pltfm.c | 22 ++++++++++--
drivers/mmc/host/sdhci-pltfm.h | 2 ++
drivers/mmc/host/sdhci-sirf.c | 39 +-------------------
drivers/mmc/host/sdhci.h | 4 ---
6 files changed, 91 insertions(+), 90 deletions(-)
--
2.7.4
^ permalink raw reply [flat|nested] 17+ messages in thread
* [PATCH v2 1/4] mmc: sdhci: enable/disable the clock in sdhci_pltfm_suspend/resume
2017-08-03 1:44 ` Masahiro Yamada
(?)
@ 2017-08-03 1:44 ` Masahiro Yamada
-1 siblings, 0 replies; 17+ messages in thread
From: Masahiro Yamada @ 2017-08-03 1:44 UTC (permalink / raw)
To: linux-mmc
Cc: Piotr Sroka, Adrian Hunter, Masahiro Yamada, Al Cooper,
linux-kernel, Brian Norris, bcm-kernel-feedback-list, Barry Song,
Florian Fainelli, Gregory Fong, linux-arm-kernel, Ulf Hansson
This commit provides similar cleanups as commit 83eacdfa2529 ("mmc:
sdhci: disable the clock in sdhci_pltfm_unregister()") did for
unregister hooks.
Some drivers duplicate code to handle pltfm_host->clk in their own
hooks. The clock can be handled in sdhci_pltfm.c so that drivers
can reuse sdhci_pltfm_pmops.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---
Changes in v2:
- Fix build error reported by kbuild test robot
drivers/mmc/host/sdhci-brcmstb.c | 37 +------------------------------------
drivers/mmc/host/sdhci-pltfm.c | 16 +++++++++++++++-
drivers/mmc/host/sdhci-sirf.c | 39 +--------------------------------------
3 files changed, 17 insertions(+), 75 deletions(-)
diff --git a/drivers/mmc/host/sdhci-brcmstb.c b/drivers/mmc/host/sdhci-brcmstb.c
index e2f638338e8f..6d461fcdd663 100644
--- a/drivers/mmc/host/sdhci-brcmstb.c
+++ b/drivers/mmc/host/sdhci-brcmstb.c
@@ -21,41 +21,6 @@
#include "sdhci-pltfm.h"
-#ifdef CONFIG_PM_SLEEP
-
-static int sdhci_brcmstb_suspend(struct device *dev)
-{
- struct sdhci_host *host = dev_get_drvdata(dev);
- struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
- int res;
-
- if (host->tuning_mode != SDHCI_TUNING_MODE_3)
- mmc_retune_needed(host->mmc);
-
- res = sdhci_suspend_host(host);
- if (res)
- return res;
- clk_disable_unprepare(pltfm_host->clk);
- return res;
-}
-
-static int sdhci_brcmstb_resume(struct device *dev)
-{
- struct sdhci_host *host = dev_get_drvdata(dev);
- struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
- int err;
-
- err = clk_prepare_enable(pltfm_host->clk);
- if (err)
- return err;
- return sdhci_resume_host(host);
-}
-
-#endif /* CONFIG_PM_SLEEP */
-
-static SIMPLE_DEV_PM_OPS(sdhci_brcmstb_pmops, sdhci_brcmstb_suspend,
- sdhci_brcmstb_resume);
-
static const struct sdhci_ops sdhci_brcmstb_ops = {
.set_clock = sdhci_set_clock,
.set_bus_width = sdhci_set_bus_width,
@@ -131,7 +96,7 @@ MODULE_DEVICE_TABLE(of, sdhci_brcm_of_match);
static struct platform_driver sdhci_brcmstb_driver = {
.driver = {
.name = "sdhci-brcmstb",
- .pm = &sdhci_brcmstb_pmops,
+ .pm = &sdhci_pltfm_pmops,
.of_match_table = of_match_ptr(sdhci_brcm_of_match),
},
.probe = sdhci_brcmstb_probe,
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index e090d8c42ddb..be9a79d62e22 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -212,16 +212,30 @@ EXPORT_SYMBOL_GPL(sdhci_pltfm_unregister);
static int sdhci_pltfm_suspend(struct device *dev)
{
struct sdhci_host *host = dev_get_drvdata(dev);
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ int ret;
if (host->tuning_mode != SDHCI_TUNING_MODE_3)
mmc_retune_needed(host->mmc);
- return sdhci_suspend_host(host);
+ ret = sdhci_suspend_host(host);
+ if (ret)
+ return ret;
+
+ clk_disable_unprepare(pltfm_host->clk);
+
+ return 0;
}
static int sdhci_pltfm_resume(struct device *dev)
{
struct sdhci_host *host = dev_get_drvdata(dev);
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ int ret;
+
+ ret = clk_prepare_enable(pltfm_host->clk);
+ if (ret)
+ return ret;
return sdhci_resume_host(host);
}
diff --git a/drivers/mmc/host/sdhci-sirf.c b/drivers/mmc/host/sdhci-sirf.c
index c251c6c0a112..0c7aa89df4e2 100644
--- a/drivers/mmc/host/sdhci-sirf.c
+++ b/drivers/mmc/host/sdhci-sirf.c
@@ -230,43 +230,6 @@ static int sdhci_sirf_probe(struct platform_device *pdev)
return ret;
}
-#ifdef CONFIG_PM_SLEEP
-static int sdhci_sirf_suspend(struct device *dev)
-{
- struct sdhci_host *host = dev_get_drvdata(dev);
- struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
- int ret;
-
- if (host->tuning_mode != SDHCI_TUNING_MODE_3)
- mmc_retune_needed(host->mmc);
-
- ret = sdhci_suspend_host(host);
- if (ret)
- return ret;
-
- clk_disable(pltfm_host->clk);
-
- return 0;
-}
-
-static int sdhci_sirf_resume(struct device *dev)
-{
- struct sdhci_host *host = dev_get_drvdata(dev);
- struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
- int ret;
-
- ret = clk_enable(pltfm_host->clk);
- if (ret) {
- dev_dbg(dev, "Resume: Error enabling clock\n");
- return ret;
- }
-
- return sdhci_resume_host(host);
-}
-#endif
-
-static SIMPLE_DEV_PM_OPS(sdhci_sirf_pm_ops, sdhci_sirf_suspend, sdhci_sirf_resume);
-
static const struct of_device_id sdhci_sirf_of_match[] = {
{ .compatible = "sirf,prima2-sdhc" },
{ }
@@ -277,7 +240,7 @@ static struct platform_driver sdhci_sirf_driver = {
.driver = {
.name = "sdhci-sirf",
.of_match_table = sdhci_sirf_of_match,
- .pm = &sdhci_sirf_pm_ops,
+ .pm = &sdhci_pltfm_pmops,
},
.probe = sdhci_sirf_probe,
.remove = sdhci_pltfm_unregister,
--
2.7.4
^ permalink raw reply related [flat|nested] 17+ messages in thread
* [PATCH v2 1/4] mmc: sdhci: enable/disable the clock in sdhci_pltfm_suspend/resume
@ 2017-08-03 1:44 ` Masahiro Yamada
0 siblings, 0 replies; 17+ messages in thread
From: Masahiro Yamada @ 2017-08-03 1:44 UTC (permalink / raw)
To: linux-mmc
Cc: Barry Song, Florian Fainelli, Al Cooper, Adrian Hunter,
linux-kernel, Masahiro Yamada, bcm-kernel-feedback-list,
Gregory Fong, Ulf Hansson, Brian Norris, linux-arm-kernel,
Piotr Sroka
This commit provides similar cleanups as commit 83eacdfa2529 ("mmc:
sdhci: disable the clock in sdhci_pltfm_unregister()") did for
unregister hooks.
Some drivers duplicate code to handle pltfm_host->clk in their own
hooks. The clock can be handled in sdhci_pltfm.c so that drivers
can reuse sdhci_pltfm_pmops.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---
Changes in v2:
- Fix build error reported by kbuild test robot
drivers/mmc/host/sdhci-brcmstb.c | 37 +------------------------------------
drivers/mmc/host/sdhci-pltfm.c | 16 +++++++++++++++-
drivers/mmc/host/sdhci-sirf.c | 39 +--------------------------------------
3 files changed, 17 insertions(+), 75 deletions(-)
diff --git a/drivers/mmc/host/sdhci-brcmstb.c b/drivers/mmc/host/sdhci-brcmstb.c
index e2f638338e8f..6d461fcdd663 100644
--- a/drivers/mmc/host/sdhci-brcmstb.c
+++ b/drivers/mmc/host/sdhci-brcmstb.c
@@ -21,41 +21,6 @@
#include "sdhci-pltfm.h"
-#ifdef CONFIG_PM_SLEEP
-
-static int sdhci_brcmstb_suspend(struct device *dev)
-{
- struct sdhci_host *host = dev_get_drvdata(dev);
- struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
- int res;
-
- if (host->tuning_mode != SDHCI_TUNING_MODE_3)
- mmc_retune_needed(host->mmc);
-
- res = sdhci_suspend_host(host);
- if (res)
- return res;
- clk_disable_unprepare(pltfm_host->clk);
- return res;
-}
-
-static int sdhci_brcmstb_resume(struct device *dev)
-{
- struct sdhci_host *host = dev_get_drvdata(dev);
- struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
- int err;
-
- err = clk_prepare_enable(pltfm_host->clk);
- if (err)
- return err;
- return sdhci_resume_host(host);
-}
-
-#endif /* CONFIG_PM_SLEEP */
-
-static SIMPLE_DEV_PM_OPS(sdhci_brcmstb_pmops, sdhci_brcmstb_suspend,
- sdhci_brcmstb_resume);
-
static const struct sdhci_ops sdhci_brcmstb_ops = {
.set_clock = sdhci_set_clock,
.set_bus_width = sdhci_set_bus_width,
@@ -131,7 +96,7 @@ MODULE_DEVICE_TABLE(of, sdhci_brcm_of_match);
static struct platform_driver sdhci_brcmstb_driver = {
.driver = {
.name = "sdhci-brcmstb",
- .pm = &sdhci_brcmstb_pmops,
+ .pm = &sdhci_pltfm_pmops,
.of_match_table = of_match_ptr(sdhci_brcm_of_match),
},
.probe = sdhci_brcmstb_probe,
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index e090d8c42ddb..be9a79d62e22 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -212,16 +212,30 @@ EXPORT_SYMBOL_GPL(sdhci_pltfm_unregister);
static int sdhci_pltfm_suspend(struct device *dev)
{
struct sdhci_host *host = dev_get_drvdata(dev);
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ int ret;
if (host->tuning_mode != SDHCI_TUNING_MODE_3)
mmc_retune_needed(host->mmc);
- return sdhci_suspend_host(host);
+ ret = sdhci_suspend_host(host);
+ if (ret)
+ return ret;
+
+ clk_disable_unprepare(pltfm_host->clk);
+
+ return 0;
}
static int sdhci_pltfm_resume(struct device *dev)
{
struct sdhci_host *host = dev_get_drvdata(dev);
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ int ret;
+
+ ret = clk_prepare_enable(pltfm_host->clk);
+ if (ret)
+ return ret;
return sdhci_resume_host(host);
}
diff --git a/drivers/mmc/host/sdhci-sirf.c b/drivers/mmc/host/sdhci-sirf.c
index c251c6c0a112..0c7aa89df4e2 100644
--- a/drivers/mmc/host/sdhci-sirf.c
+++ b/drivers/mmc/host/sdhci-sirf.c
@@ -230,43 +230,6 @@ static int sdhci_sirf_probe(struct platform_device *pdev)
return ret;
}
-#ifdef CONFIG_PM_SLEEP
-static int sdhci_sirf_suspend(struct device *dev)
-{
- struct sdhci_host *host = dev_get_drvdata(dev);
- struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
- int ret;
-
- if (host->tuning_mode != SDHCI_TUNING_MODE_3)
- mmc_retune_needed(host->mmc);
-
- ret = sdhci_suspend_host(host);
- if (ret)
- return ret;
-
- clk_disable(pltfm_host->clk);
-
- return 0;
-}
-
-static int sdhci_sirf_resume(struct device *dev)
-{
- struct sdhci_host *host = dev_get_drvdata(dev);
- struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
- int ret;
-
- ret = clk_enable(pltfm_host->clk);
- if (ret) {
- dev_dbg(dev, "Resume: Error enabling clock\n");
- return ret;
- }
-
- return sdhci_resume_host(host);
-}
-#endif
-
-static SIMPLE_DEV_PM_OPS(sdhci_sirf_pm_ops, sdhci_sirf_suspend, sdhci_sirf_resume);
-
static const struct of_device_id sdhci_sirf_of_match[] = {
{ .compatible = "sirf,prima2-sdhc" },
{ }
@@ -277,7 +240,7 @@ static struct platform_driver sdhci_sirf_driver = {
.driver = {
.name = "sdhci-sirf",
.of_match_table = sdhci_sirf_of_match,
- .pm = &sdhci_sirf_pm_ops,
+ .pm = &sdhci_pltfm_pmops,
},
.probe = sdhci_sirf_probe,
.remove = sdhci_pltfm_unregister,
--
2.7.4
^ permalink raw reply related [flat|nested] 17+ messages in thread
* [PATCH v2 1/4] mmc: sdhci: enable/disable the clock in sdhci_pltfm_suspend/resume
@ 2017-08-03 1:44 ` Masahiro Yamada
0 siblings, 0 replies; 17+ messages in thread
From: Masahiro Yamada @ 2017-08-03 1:44 UTC (permalink / raw)
To: linux-arm-kernel
This commit provides similar cleanups as commit 83eacdfa2529 ("mmc:
sdhci: disable the clock in sdhci_pltfm_unregister()") did for
unregister hooks.
Some drivers duplicate code to handle pltfm_host->clk in their own
hooks. The clock can be handled in sdhci_pltfm.c so that drivers
can reuse sdhci_pltfm_pmops.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---
Changes in v2:
- Fix build error reported by kbuild test robot
drivers/mmc/host/sdhci-brcmstb.c | 37 +------------------------------------
drivers/mmc/host/sdhci-pltfm.c | 16 +++++++++++++++-
drivers/mmc/host/sdhci-sirf.c | 39 +--------------------------------------
3 files changed, 17 insertions(+), 75 deletions(-)
diff --git a/drivers/mmc/host/sdhci-brcmstb.c b/drivers/mmc/host/sdhci-brcmstb.c
index e2f638338e8f..6d461fcdd663 100644
--- a/drivers/mmc/host/sdhci-brcmstb.c
+++ b/drivers/mmc/host/sdhci-brcmstb.c
@@ -21,41 +21,6 @@
#include "sdhci-pltfm.h"
-#ifdef CONFIG_PM_SLEEP
-
-static int sdhci_brcmstb_suspend(struct device *dev)
-{
- struct sdhci_host *host = dev_get_drvdata(dev);
- struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
- int res;
-
- if (host->tuning_mode != SDHCI_TUNING_MODE_3)
- mmc_retune_needed(host->mmc);
-
- res = sdhci_suspend_host(host);
- if (res)
- return res;
- clk_disable_unprepare(pltfm_host->clk);
- return res;
-}
-
-static int sdhci_brcmstb_resume(struct device *dev)
-{
- struct sdhci_host *host = dev_get_drvdata(dev);
- struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
- int err;
-
- err = clk_prepare_enable(pltfm_host->clk);
- if (err)
- return err;
- return sdhci_resume_host(host);
-}
-
-#endif /* CONFIG_PM_SLEEP */
-
-static SIMPLE_DEV_PM_OPS(sdhci_brcmstb_pmops, sdhci_brcmstb_suspend,
- sdhci_brcmstb_resume);
-
static const struct sdhci_ops sdhci_brcmstb_ops = {
.set_clock = sdhci_set_clock,
.set_bus_width = sdhci_set_bus_width,
@@ -131,7 +96,7 @@ MODULE_DEVICE_TABLE(of, sdhci_brcm_of_match);
static struct platform_driver sdhci_brcmstb_driver = {
.driver = {
.name = "sdhci-brcmstb",
- .pm = &sdhci_brcmstb_pmops,
+ .pm = &sdhci_pltfm_pmops,
.of_match_table = of_match_ptr(sdhci_brcm_of_match),
},
.probe = sdhci_brcmstb_probe,
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index e090d8c42ddb..be9a79d62e22 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -212,16 +212,30 @@ EXPORT_SYMBOL_GPL(sdhci_pltfm_unregister);
static int sdhci_pltfm_suspend(struct device *dev)
{
struct sdhci_host *host = dev_get_drvdata(dev);
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ int ret;
if (host->tuning_mode != SDHCI_TUNING_MODE_3)
mmc_retune_needed(host->mmc);
- return sdhci_suspend_host(host);
+ ret = sdhci_suspend_host(host);
+ if (ret)
+ return ret;
+
+ clk_disable_unprepare(pltfm_host->clk);
+
+ return 0;
}
static int sdhci_pltfm_resume(struct device *dev)
{
struct sdhci_host *host = dev_get_drvdata(dev);
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ int ret;
+
+ ret = clk_prepare_enable(pltfm_host->clk);
+ if (ret)
+ return ret;
return sdhci_resume_host(host);
}
diff --git a/drivers/mmc/host/sdhci-sirf.c b/drivers/mmc/host/sdhci-sirf.c
index c251c6c0a112..0c7aa89df4e2 100644
--- a/drivers/mmc/host/sdhci-sirf.c
+++ b/drivers/mmc/host/sdhci-sirf.c
@@ -230,43 +230,6 @@ static int sdhci_sirf_probe(struct platform_device *pdev)
return ret;
}
-#ifdef CONFIG_PM_SLEEP
-static int sdhci_sirf_suspend(struct device *dev)
-{
- struct sdhci_host *host = dev_get_drvdata(dev);
- struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
- int ret;
-
- if (host->tuning_mode != SDHCI_TUNING_MODE_3)
- mmc_retune_needed(host->mmc);
-
- ret = sdhci_suspend_host(host);
- if (ret)
- return ret;
-
- clk_disable(pltfm_host->clk);
-
- return 0;
-}
-
-static int sdhci_sirf_resume(struct device *dev)
-{
- struct sdhci_host *host = dev_get_drvdata(dev);
- struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
- int ret;
-
- ret = clk_enable(pltfm_host->clk);
- if (ret) {
- dev_dbg(dev, "Resume: Error enabling clock\n");
- return ret;
- }
-
- return sdhci_resume_host(host);
-}
-#endif
-
-static SIMPLE_DEV_PM_OPS(sdhci_sirf_pm_ops, sdhci_sirf_suspend, sdhci_sirf_resume);
-
static const struct of_device_id sdhci_sirf_of_match[] = {
{ .compatible = "sirf,prima2-sdhc" },
{ }
@@ -277,7 +240,7 @@ static struct platform_driver sdhci_sirf_driver = {
.driver = {
.name = "sdhci-sirf",
.of_match_table = sdhci_sirf_of_match,
- .pm = &sdhci_sirf_pm_ops,
+ .pm = &sdhci_pltfm_pmops,
},
.probe = sdhci_sirf_probe,
.remove = sdhci_pltfm_unregister,
--
2.7.4
^ permalink raw reply related [flat|nested] 17+ messages in thread
* [PATCH v2 2/4] mmc: sdhci: remove #indef CONFIG_PM around function declarations
2017-08-03 1:44 ` Masahiro Yamada
` (2 preceding siblings ...)
(?)
@ 2017-08-03 1:44 ` Masahiro Yamada
2017-08-14 10:29 ` Adrian Hunter
-1 siblings, 1 reply; 17+ messages in thread
From: Masahiro Yamada @ 2017-08-03 1:44 UTC (permalink / raw)
To: linux-mmc
Cc: Piotr Sroka, Adrian Hunter, Masahiro Yamada, linux-kernel, Ulf Hansson
We need not surround declarations with #ifdef. Besides, drivers may
want to call these from PM callbacks marked with __maybe_unused.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---
Changes in v2:
- Newly added
drivers/mmc/host/sdhci.h | 4 ----
1 file changed, 4 deletions(-)
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 0469fa191493..773b38127da2 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -709,15 +709,11 @@ void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios);
int sdhci_start_signal_voltage_switch(struct mmc_host *mmc,
struct mmc_ios *ios);
void sdhci_enable_sdio_irq(struct mmc_host *mmc, int enable);
-
-#ifdef CONFIG_PM
int sdhci_suspend_host(struct sdhci_host *host);
int sdhci_resume_host(struct sdhci_host *host);
void sdhci_enable_irq_wakeups(struct sdhci_host *host);
int sdhci_runtime_suspend_host(struct sdhci_host *host);
int sdhci_runtime_resume_host(struct sdhci_host *host);
-#endif
-
void sdhci_cqe_enable(struct mmc_host *mmc);
void sdhci_cqe_disable(struct mmc_host *mmc, bool recovery);
bool sdhci_cqe_irq(struct sdhci_host *host, u32 intmask, int *cmd_error,
--
2.7.4
^ permalink raw reply related [flat|nested] 17+ messages in thread
* [PATCH v2 3/4] mmc: sdhci-pltfm: export sdhci_pltfm_suspend/resume
2017-08-03 1:44 ` Masahiro Yamada
` (3 preceding siblings ...)
(?)
@ 2017-08-03 1:44 ` Masahiro Yamada
-1 siblings, 0 replies; 17+ messages in thread
From: Masahiro Yamada @ 2017-08-03 1:44 UTC (permalink / raw)
To: linux-mmc
Cc: Piotr Sroka, Adrian Hunter, Masahiro Yamada, linux-kernel, Ulf Hansson
This will be useful when drivers want to reuse only the suspend/resume
callbacks instead of whole of sdhci_pltfm_pmops.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---
Changes in v2: None
drivers/mmc/host/sdhci-pltfm.c | 6 ++++--
drivers/mmc/host/sdhci-pltfm.h | 2 ++
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index be9a79d62e22..a34eacac612f 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -209,7 +209,7 @@ int sdhci_pltfm_unregister(struct platform_device *pdev)
EXPORT_SYMBOL_GPL(sdhci_pltfm_unregister);
#ifdef CONFIG_PM_SLEEP
-static int sdhci_pltfm_suspend(struct device *dev)
+int sdhci_pltfm_suspend(struct device *dev)
{
struct sdhci_host *host = dev_get_drvdata(dev);
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -226,8 +226,9 @@ static int sdhci_pltfm_suspend(struct device *dev)
return 0;
}
+EXPORT_SYMBOL_GPL(sdhci_pltfm_suspend);
-static int sdhci_pltfm_resume(struct device *dev)
+int sdhci_pltfm_resume(struct device *dev)
{
struct sdhci_host *host = dev_get_drvdata(dev);
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -239,6 +240,7 @@ static int sdhci_pltfm_resume(struct device *dev)
return sdhci_resume_host(host);
}
+EXPORT_SYMBOL_GPL(sdhci_pltfm_resume);
#endif
const struct dev_pm_ops sdhci_pltfm_pmops = {
diff --git a/drivers/mmc/host/sdhci-pltfm.h b/drivers/mmc/host/sdhci-pltfm.h
index 957839d0fe37..1e91fb1c020e 100644
--- a/drivers/mmc/host/sdhci-pltfm.h
+++ b/drivers/mmc/host/sdhci-pltfm.h
@@ -109,6 +109,8 @@ static inline void *sdhci_pltfm_priv(struct sdhci_pltfm_host *host)
return host->private;
}
+int sdhci_pltfm_suspend(struct device *dev);
+int sdhci_pltfm_resume(struct device *dev);
extern const struct dev_pm_ops sdhci_pltfm_pmops;
#endif /* _DRIVERS_MMC_SDHCI_PLTFM_H */
--
2.7.4
^ permalink raw reply related [flat|nested] 17+ messages in thread
* [PATCH v2 4/4] mmc: sdhci-cadence: add suspend / resume support
2017-08-03 1:44 ` Masahiro Yamada
` (4 preceding siblings ...)
(?)
@ 2017-08-03 1:44 ` Masahiro Yamada
2017-08-14 10:53 ` Adrian Hunter
-1 siblings, 1 reply; 17+ messages in thread
From: Masahiro Yamada @ 2017-08-03 1:44 UTC (permalink / raw)
To: linux-mmc
Cc: Piotr Sroka, Adrian Hunter, Masahiro Yamada, linux-kernel, Ulf Hansson
Currently, the probe function initializes the PHY, but PHY settings
are lost during the sleep state. Restore the PHY registers when
resuming.
To facilitate this, split sdhci_cdns_phy_init() into the DT parse
part and PHY update part so that the latter can be invoked from the
resume hook.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---
Changes in v2: None
drivers/mmc/host/sdhci-cadence.c | 77 +++++++++++++++++++++++++++++++++++-----
1 file changed, 68 insertions(+), 9 deletions(-)
diff --git a/drivers/mmc/host/sdhci-cadence.c b/drivers/mmc/host/sdhci-cadence.c
index 19d5698244b5..7473766801a5 100644
--- a/drivers/mmc/host/sdhci-cadence.c
+++ b/drivers/mmc/host/sdhci-cadence.c
@@ -67,9 +67,16 @@
*/
#define SDHCI_CDNS_MAX_TUNING_LOOP 40
+struct sdhci_cdns_phy_param {
+ u8 addr;
+ u8 data;
+};
+
struct sdhci_cdns_priv {
void __iomem *hrs_addr;
bool enhanced_strobe;
+ unsigned int nr_phy_params;
+ struct sdhci_cdns_phy_param phy_params[0];
};
struct sdhci_cdns_phy_cfg {
@@ -115,9 +122,22 @@ static int sdhci_cdns_write_phy_reg(struct sdhci_cdns_priv *priv,
return 0;
}
-static int sdhci_cdns_phy_init(struct device_node *np,
- struct sdhci_cdns_priv *priv)
+static unsigned int sdhci_cdns_phy_param_count(struct device_node *np)
{
+ unsigned int count = 0;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(sdhci_cdns_phy_cfgs); i++)
+ if (of_property_read_bool(np, sdhci_cdns_phy_cfgs[i].property))
+ count++;
+
+ return count;
+}
+
+static void sdhci_cdns_phy_param_parse(struct device_node *np,
+ struct sdhci_cdns_priv *priv)
+{
+ struct sdhci_cdns_phy_param *p = priv->phy_params;
u32 val;
int ret, i;
@@ -127,9 +147,19 @@ static int sdhci_cdns_phy_init(struct device_node *np,
if (ret)
continue;
- ret = sdhci_cdns_write_phy_reg(priv,
- sdhci_cdns_phy_cfgs[i].addr,
- val);
+ p->addr = sdhci_cdns_phy_cfgs[i].addr;
+ p->data = val;
+ p++;
+ }
+}
+
+static int sdhci_cdns_phy_init(struct sdhci_cdns_priv *priv)
+{
+ int ret, i;
+
+ for (i = 0; i < priv->nr_phy_params; i++) {
+ ret = sdhci_cdns_write_phy_reg(priv, priv->phy_params[i].addr,
+ priv->phy_params[i].data);
if (ret)
return ret;
}
@@ -302,6 +332,8 @@ static int sdhci_cdns_probe(struct platform_device *pdev)
struct sdhci_pltfm_host *pltfm_host;
struct sdhci_cdns_priv *priv;
struct clk *clk;
+ size_t priv_size;
+ unsigned int nr_phy_params;
int ret;
struct device *dev = &pdev->dev;
@@ -313,7 +345,9 @@ static int sdhci_cdns_probe(struct platform_device *pdev)
if (ret)
return ret;
- host = sdhci_pltfm_init(pdev, &sdhci_cdns_pltfm_data, sizeof(*priv));
+ nr_phy_params = sdhci_cdns_phy_param_count(dev->of_node);
+ priv_size = sizeof(*priv) + sizeof(priv->phy_params[0]) * nr_phy_params;
+ host = sdhci_pltfm_init(pdev, &sdhci_cdns_pltfm_data, priv_size);
if (IS_ERR(host)) {
ret = PTR_ERR(host);
goto disable_clk;
@@ -322,7 +356,8 @@ static int sdhci_cdns_probe(struct platform_device *pdev)
pltfm_host = sdhci_priv(host);
pltfm_host->clk = clk;
- priv = sdhci_cdns_priv(host);
+ priv = sdhci_pltfm_priv(pltfm_host);
+ priv->nr_phy_params = nr_phy_params;
priv->hrs_addr = host->ioaddr;
priv->enhanced_strobe = false;
host->ioaddr += SDHCI_CDNS_SRS_BASE;
@@ -336,7 +371,9 @@ static int sdhci_cdns_probe(struct platform_device *pdev)
if (ret)
goto free;
- ret = sdhci_cdns_phy_init(dev->of_node, priv);
+ sdhci_cdns_phy_param_parse(dev->of_node, priv);
+
+ ret = sdhci_cdns_phy_init(priv);
if (ret)
goto free;
@@ -353,6 +390,28 @@ static int sdhci_cdns_probe(struct platform_device *pdev)
return ret;
}
+static int __maybe_unused sdhci_cdns_resume(struct device *dev)
+{
+ struct sdhci_host *host = dev_get_drvdata(dev);
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ struct sdhci_cdns_priv *priv = sdhci_pltfm_priv(pltfm_host);
+ int ret;
+
+ ret = clk_prepare_enable(pltfm_host->clk);
+ if (ret)
+ return ret;
+
+ ret = sdhci_cdns_phy_init(priv);
+ if (ret)
+ return ret;
+
+ return sdhci_resume_host(host);
+}
+
+static const struct dev_pm_ops sdhci_cdns_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(sdhci_pltfm_suspend, sdhci_cdns_resume)
+};
+
static const struct of_device_id sdhci_cdns_match[] = {
{ .compatible = "socionext,uniphier-sd4hc" },
{ .compatible = "cdns,sd4hc" },
@@ -363,7 +422,7 @@ MODULE_DEVICE_TABLE(of, sdhci_cdns_match);
static struct platform_driver sdhci_cdns_driver = {
.driver = {
.name = "sdhci-cdns",
- .pm = &sdhci_pltfm_pmops,
+ .pm = &sdhci_cdns_pm_ops,
.of_match_table = sdhci_cdns_match,
},
.probe = sdhci_cdns_probe,
--
2.7.4
^ permalink raw reply related [flat|nested] 17+ messages in thread
* Re: [PATCH v2 1/4] mmc: sdhci: enable/disable the clock in sdhci_pltfm_suspend/resume
2017-08-03 1:44 ` Masahiro Yamada
@ 2017-08-14 10:28 ` Adrian Hunter
-1 siblings, 0 replies; 17+ messages in thread
From: Adrian Hunter @ 2017-08-14 10:28 UTC (permalink / raw)
To: Masahiro Yamada, linux-mmc
Cc: Piotr Sroka, Al Cooper, linux-kernel, Brian Norris,
bcm-kernel-feedback-list, Barry Song, Florian Fainelli,
Gregory Fong, linux-arm-kernel, Ulf Hansson
On 03/08/17 04:44, Masahiro Yamada wrote:
> This commit provides similar cleanups as commit 83eacdfa2529 ("mmc:
> sdhci: disable the clock in sdhci_pltfm_unregister()") did for
> unregister hooks.
>
> Some drivers duplicate code to handle pltfm_host->clk in their own
> hooks. The clock can be handled in sdhci_pltfm.c so that drivers
> can reuse sdhci_pltfm_pmops.
>
> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
I would like to some see Acks from other driver maintainers including ones
that did not previously clk_disable_unprepare(pltfm_host->clk) in suspend
but now do. e.g. sdhci-tegra
> ---
>
> Changes in v2:
> - Fix build error reported by kbuild test robot
>
> drivers/mmc/host/sdhci-brcmstb.c | 37 +------------------------------------
> drivers/mmc/host/sdhci-pltfm.c | 16 +++++++++++++++-
> drivers/mmc/host/sdhci-sirf.c | 39 +--------------------------------------
> 3 files changed, 17 insertions(+), 75 deletions(-)
>
> diff --git a/drivers/mmc/host/sdhci-brcmstb.c b/drivers/mmc/host/sdhci-brcmstb.c
> index e2f638338e8f..6d461fcdd663 100644
> --- a/drivers/mmc/host/sdhci-brcmstb.c
> +++ b/drivers/mmc/host/sdhci-brcmstb.c
> @@ -21,41 +21,6 @@
>
> #include "sdhci-pltfm.h"
>
> -#ifdef CONFIG_PM_SLEEP
> -
> -static int sdhci_brcmstb_suspend(struct device *dev)
> -{
> - struct sdhci_host *host = dev_get_drvdata(dev);
> - struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> - int res;
> -
> - if (host->tuning_mode != SDHCI_TUNING_MODE_3)
> - mmc_retune_needed(host->mmc);
> -
> - res = sdhci_suspend_host(host);
> - if (res)
> - return res;
> - clk_disable_unprepare(pltfm_host->clk);
> - return res;
> -}
> -
> -static int sdhci_brcmstb_resume(struct device *dev)
> -{
> - struct sdhci_host *host = dev_get_drvdata(dev);
> - struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> - int err;
> -
> - err = clk_prepare_enable(pltfm_host->clk);
> - if (err)
> - return err;
> - return sdhci_resume_host(host);
> -}
> -
> -#endif /* CONFIG_PM_SLEEP */
> -
> -static SIMPLE_DEV_PM_OPS(sdhci_brcmstb_pmops, sdhci_brcmstb_suspend,
> - sdhci_brcmstb_resume);
> -
> static const struct sdhci_ops sdhci_brcmstb_ops = {
> .set_clock = sdhci_set_clock,
> .set_bus_width = sdhci_set_bus_width,
> @@ -131,7 +96,7 @@ MODULE_DEVICE_TABLE(of, sdhci_brcm_of_match);
> static struct platform_driver sdhci_brcmstb_driver = {
> .driver = {
> .name = "sdhci-brcmstb",
> - .pm = &sdhci_brcmstb_pmops,
> + .pm = &sdhci_pltfm_pmops,
> .of_match_table = of_match_ptr(sdhci_brcm_of_match),
> },
> .probe = sdhci_brcmstb_probe,
> diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
> index e090d8c42ddb..be9a79d62e22 100644
> --- a/drivers/mmc/host/sdhci-pltfm.c
> +++ b/drivers/mmc/host/sdhci-pltfm.c
> @@ -212,16 +212,30 @@ EXPORT_SYMBOL_GPL(sdhci_pltfm_unregister);
> static int sdhci_pltfm_suspend(struct device *dev)
> {
> struct sdhci_host *host = dev_get_drvdata(dev);
> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> + int ret;
>
> if (host->tuning_mode != SDHCI_TUNING_MODE_3)
> mmc_retune_needed(host->mmc);
>
> - return sdhci_suspend_host(host);
> + ret = sdhci_suspend_host(host);
> + if (ret)
> + return ret;
> +
> + clk_disable_unprepare(pltfm_host->clk);
> +
> + return 0;
> }
>
> static int sdhci_pltfm_resume(struct device *dev)
> {
> struct sdhci_host *host = dev_get_drvdata(dev);
> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> + int ret;
> +
> + ret = clk_prepare_enable(pltfm_host->clk);
> + if (ret)
> + return ret;
>
> return sdhci_resume_host(host);
> }
> diff --git a/drivers/mmc/host/sdhci-sirf.c b/drivers/mmc/host/sdhci-sirf.c
> index c251c6c0a112..0c7aa89df4e2 100644
> --- a/drivers/mmc/host/sdhci-sirf.c
> +++ b/drivers/mmc/host/sdhci-sirf.c
> @@ -230,43 +230,6 @@ static int sdhci_sirf_probe(struct platform_device *pdev)
> return ret;
> }
>
> -#ifdef CONFIG_PM_SLEEP
> -static int sdhci_sirf_suspend(struct device *dev)
> -{
> - struct sdhci_host *host = dev_get_drvdata(dev);
> - struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> - int ret;
> -
> - if (host->tuning_mode != SDHCI_TUNING_MODE_3)
> - mmc_retune_needed(host->mmc);
> -
> - ret = sdhci_suspend_host(host);
> - if (ret)
> - return ret;
> -
> - clk_disable(pltfm_host->clk);
> -
> - return 0;
> -}
> -
> -static int sdhci_sirf_resume(struct device *dev)
> -{
> - struct sdhci_host *host = dev_get_drvdata(dev);
> - struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> - int ret;
> -
> - ret = clk_enable(pltfm_host->clk);
> - if (ret) {
> - dev_dbg(dev, "Resume: Error enabling clock\n");
> - return ret;
> - }
> -
> - return sdhci_resume_host(host);
> -}
> -#endif
> -
> -static SIMPLE_DEV_PM_OPS(sdhci_sirf_pm_ops, sdhci_sirf_suspend, sdhci_sirf_resume);
> -
> static const struct of_device_id sdhci_sirf_of_match[] = {
> { .compatible = "sirf,prima2-sdhc" },
> { }
> @@ -277,7 +240,7 @@ static struct platform_driver sdhci_sirf_driver = {
> .driver = {
> .name = "sdhci-sirf",
> .of_match_table = sdhci_sirf_of_match,
> - .pm = &sdhci_sirf_pm_ops,
> + .pm = &sdhci_pltfm_pmops,
> },
> .probe = sdhci_sirf_probe,
> .remove = sdhci_pltfm_unregister,
>
^ permalink raw reply [flat|nested] 17+ messages in thread
* [PATCH v2 1/4] mmc: sdhci: enable/disable the clock in sdhci_pltfm_suspend/resume
@ 2017-08-14 10:28 ` Adrian Hunter
0 siblings, 0 replies; 17+ messages in thread
From: Adrian Hunter @ 2017-08-14 10:28 UTC (permalink / raw)
To: linux-arm-kernel
On 03/08/17 04:44, Masahiro Yamada wrote:
> This commit provides similar cleanups as commit 83eacdfa2529 ("mmc:
> sdhci: disable the clock in sdhci_pltfm_unregister()") did for
> unregister hooks.
>
> Some drivers duplicate code to handle pltfm_host->clk in their own
> hooks. The clock can be handled in sdhci_pltfm.c so that drivers
> can reuse sdhci_pltfm_pmops.
>
> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
I would like to some see Acks from other driver maintainers including ones
that did not previously clk_disable_unprepare(pltfm_host->clk) in suspend
but now do. e.g. sdhci-tegra
> ---
>
> Changes in v2:
> - Fix build error reported by kbuild test robot
>
> drivers/mmc/host/sdhci-brcmstb.c | 37 +------------------------------------
> drivers/mmc/host/sdhci-pltfm.c | 16 +++++++++++++++-
> drivers/mmc/host/sdhci-sirf.c | 39 +--------------------------------------
> 3 files changed, 17 insertions(+), 75 deletions(-)
>
> diff --git a/drivers/mmc/host/sdhci-brcmstb.c b/drivers/mmc/host/sdhci-brcmstb.c
> index e2f638338e8f..6d461fcdd663 100644
> --- a/drivers/mmc/host/sdhci-brcmstb.c
> +++ b/drivers/mmc/host/sdhci-brcmstb.c
> @@ -21,41 +21,6 @@
>
> #include "sdhci-pltfm.h"
>
> -#ifdef CONFIG_PM_SLEEP
> -
> -static int sdhci_brcmstb_suspend(struct device *dev)
> -{
> - struct sdhci_host *host = dev_get_drvdata(dev);
> - struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> - int res;
> -
> - if (host->tuning_mode != SDHCI_TUNING_MODE_3)
> - mmc_retune_needed(host->mmc);
> -
> - res = sdhci_suspend_host(host);
> - if (res)
> - return res;
> - clk_disable_unprepare(pltfm_host->clk);
> - return res;
> -}
> -
> -static int sdhci_brcmstb_resume(struct device *dev)
> -{
> - struct sdhci_host *host = dev_get_drvdata(dev);
> - struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> - int err;
> -
> - err = clk_prepare_enable(pltfm_host->clk);
> - if (err)
> - return err;
> - return sdhci_resume_host(host);
> -}
> -
> -#endif /* CONFIG_PM_SLEEP */
> -
> -static SIMPLE_DEV_PM_OPS(sdhci_brcmstb_pmops, sdhci_brcmstb_suspend,
> - sdhci_brcmstb_resume);
> -
> static const struct sdhci_ops sdhci_brcmstb_ops = {
> .set_clock = sdhci_set_clock,
> .set_bus_width = sdhci_set_bus_width,
> @@ -131,7 +96,7 @@ MODULE_DEVICE_TABLE(of, sdhci_brcm_of_match);
> static struct platform_driver sdhci_brcmstb_driver = {
> .driver = {
> .name = "sdhci-brcmstb",
> - .pm = &sdhci_brcmstb_pmops,
> + .pm = &sdhci_pltfm_pmops,
> .of_match_table = of_match_ptr(sdhci_brcm_of_match),
> },
> .probe = sdhci_brcmstb_probe,
> diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
> index e090d8c42ddb..be9a79d62e22 100644
> --- a/drivers/mmc/host/sdhci-pltfm.c
> +++ b/drivers/mmc/host/sdhci-pltfm.c
> @@ -212,16 +212,30 @@ EXPORT_SYMBOL_GPL(sdhci_pltfm_unregister);
> static int sdhci_pltfm_suspend(struct device *dev)
> {
> struct sdhci_host *host = dev_get_drvdata(dev);
> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> + int ret;
>
> if (host->tuning_mode != SDHCI_TUNING_MODE_3)
> mmc_retune_needed(host->mmc);
>
> - return sdhci_suspend_host(host);
> + ret = sdhci_suspend_host(host);
> + if (ret)
> + return ret;
> +
> + clk_disable_unprepare(pltfm_host->clk);
> +
> + return 0;
> }
>
> static int sdhci_pltfm_resume(struct device *dev)
> {
> struct sdhci_host *host = dev_get_drvdata(dev);
> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> + int ret;
> +
> + ret = clk_prepare_enable(pltfm_host->clk);
> + if (ret)
> + return ret;
>
> return sdhci_resume_host(host);
> }
> diff --git a/drivers/mmc/host/sdhci-sirf.c b/drivers/mmc/host/sdhci-sirf.c
> index c251c6c0a112..0c7aa89df4e2 100644
> --- a/drivers/mmc/host/sdhci-sirf.c
> +++ b/drivers/mmc/host/sdhci-sirf.c
> @@ -230,43 +230,6 @@ static int sdhci_sirf_probe(struct platform_device *pdev)
> return ret;
> }
>
> -#ifdef CONFIG_PM_SLEEP
> -static int sdhci_sirf_suspend(struct device *dev)
> -{
> - struct sdhci_host *host = dev_get_drvdata(dev);
> - struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> - int ret;
> -
> - if (host->tuning_mode != SDHCI_TUNING_MODE_3)
> - mmc_retune_needed(host->mmc);
> -
> - ret = sdhci_suspend_host(host);
> - if (ret)
> - return ret;
> -
> - clk_disable(pltfm_host->clk);
> -
> - return 0;
> -}
> -
> -static int sdhci_sirf_resume(struct device *dev)
> -{
> - struct sdhci_host *host = dev_get_drvdata(dev);
> - struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> - int ret;
> -
> - ret = clk_enable(pltfm_host->clk);
> - if (ret) {
> - dev_dbg(dev, "Resume: Error enabling clock\n");
> - return ret;
> - }
> -
> - return sdhci_resume_host(host);
> -}
> -#endif
> -
> -static SIMPLE_DEV_PM_OPS(sdhci_sirf_pm_ops, sdhci_sirf_suspend, sdhci_sirf_resume);
> -
> static const struct of_device_id sdhci_sirf_of_match[] = {
> { .compatible = "sirf,prima2-sdhc" },
> { }
> @@ -277,7 +240,7 @@ static struct platform_driver sdhci_sirf_driver = {
> .driver = {
> .name = "sdhci-sirf",
> .of_match_table = sdhci_sirf_of_match,
> - .pm = &sdhci_sirf_pm_ops,
> + .pm = &sdhci_pltfm_pmops,
> },
> .probe = sdhci_sirf_probe,
> .remove = sdhci_pltfm_unregister,
>
^ permalink raw reply [flat|nested] 17+ messages in thread
* Re: [PATCH v2 1/4] mmc: sdhci: enable/disable the clock in sdhci_pltfm_suspend/resume
2017-08-03 1:44 ` Masahiro Yamada
@ 2017-08-14 10:28 ` Adrian Hunter
-1 siblings, 0 replies; 17+ messages in thread
From: Adrian Hunter @ 2017-08-14 10:28 UTC (permalink / raw)
To: Masahiro Yamada, linux-mmc
Cc: Piotr Sroka, Al Cooper, linux-kernel, Brian Norris,
bcm-kernel-feedback-list, Barry Song, Florian Fainelli,
Gregory Fong, linux-arm-kernel, Ulf Hansson
On 03/08/17 04:44, Masahiro Yamada wrote:
> This commit provides similar cleanups as commit 83eacdfa2529 ("mmc:
> sdhci: disable the clock in sdhci_pltfm_unregister()") did for
> unregister hooks.
>
> Some drivers duplicate code to handle pltfm_host->clk in their own
> hooks. The clock can be handled in sdhci_pltfm.c so that drivers
> can reuse sdhci_pltfm_pmops.
>
> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
I would like to see some Acks from other driver maintainers including ones
that did not previously clk_disable_unprepare(pltfm_host->clk) in suspend
but now do. e.g. sdhci-tegra
> ---
>
> Changes in v2:
> - Fix build error reported by kbuild test robot
>
> drivers/mmc/host/sdhci-brcmstb.c | 37 +------------------------------------
> drivers/mmc/host/sdhci-pltfm.c | 16 +++++++++++++++-
> drivers/mmc/host/sdhci-sirf.c | 39 +--------------------------------------
> 3 files changed, 17 insertions(+), 75 deletions(-)
>
> diff --git a/drivers/mmc/host/sdhci-brcmstb.c b/drivers/mmc/host/sdhci-brcmstb.c
> index e2f638338e8f..6d461fcdd663 100644
> --- a/drivers/mmc/host/sdhci-brcmstb.c
> +++ b/drivers/mmc/host/sdhci-brcmstb.c
> @@ -21,41 +21,6 @@
>
> #include "sdhci-pltfm.h"
>
> -#ifdef CONFIG_PM_SLEEP
> -
> -static int sdhci_brcmstb_suspend(struct device *dev)
> -{
> - struct sdhci_host *host = dev_get_drvdata(dev);
> - struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> - int res;
> -
> - if (host->tuning_mode != SDHCI_TUNING_MODE_3)
> - mmc_retune_needed(host->mmc);
> -
> - res = sdhci_suspend_host(host);
> - if (res)
> - return res;
> - clk_disable_unprepare(pltfm_host->clk);
> - return res;
> -}
> -
> -static int sdhci_brcmstb_resume(struct device *dev)
> -{
> - struct sdhci_host *host = dev_get_drvdata(dev);
> - struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> - int err;
> -
> - err = clk_prepare_enable(pltfm_host->clk);
> - if (err)
> - return err;
> - return sdhci_resume_host(host);
> -}
> -
> -#endif /* CONFIG_PM_SLEEP */
> -
> -static SIMPLE_DEV_PM_OPS(sdhci_brcmstb_pmops, sdhci_brcmstb_suspend,
> - sdhci_brcmstb_resume);
> -
> static const struct sdhci_ops sdhci_brcmstb_ops = {
> .set_clock = sdhci_set_clock,
> .set_bus_width = sdhci_set_bus_width,
> @@ -131,7 +96,7 @@ MODULE_DEVICE_TABLE(of, sdhci_brcm_of_match);
> static struct platform_driver sdhci_brcmstb_driver = {
> .driver = {
> .name = "sdhci-brcmstb",
> - .pm = &sdhci_brcmstb_pmops,
> + .pm = &sdhci_pltfm_pmops,
> .of_match_table = of_match_ptr(sdhci_brcm_of_match),
> },
> .probe = sdhci_brcmstb_probe,
> diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
> index e090d8c42ddb..be9a79d62e22 100644
> --- a/drivers/mmc/host/sdhci-pltfm.c
> +++ b/drivers/mmc/host/sdhci-pltfm.c
> @@ -212,16 +212,30 @@ EXPORT_SYMBOL_GPL(sdhci_pltfm_unregister);
> static int sdhci_pltfm_suspend(struct device *dev)
> {
> struct sdhci_host *host = dev_get_drvdata(dev);
> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> + int ret;
>
> if (host->tuning_mode != SDHCI_TUNING_MODE_3)
> mmc_retune_needed(host->mmc);
>
> - return sdhci_suspend_host(host);
> + ret = sdhci_suspend_host(host);
> + if (ret)
> + return ret;
> +
> + clk_disable_unprepare(pltfm_host->clk);
> +
> + return 0;
> }
>
> static int sdhci_pltfm_resume(struct device *dev)
> {
> struct sdhci_host *host = dev_get_drvdata(dev);
> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> + int ret;
> +
> + ret = clk_prepare_enable(pltfm_host->clk);
> + if (ret)
> + return ret;
>
> return sdhci_resume_host(host);
> }
> diff --git a/drivers/mmc/host/sdhci-sirf.c b/drivers/mmc/host/sdhci-sirf.c
> index c251c6c0a112..0c7aa89df4e2 100644
> --- a/drivers/mmc/host/sdhci-sirf.c
> +++ b/drivers/mmc/host/sdhci-sirf.c
> @@ -230,43 +230,6 @@ static int sdhci_sirf_probe(struct platform_device *pdev)
> return ret;
> }
>
> -#ifdef CONFIG_PM_SLEEP
> -static int sdhci_sirf_suspend(struct device *dev)
> -{
> - struct sdhci_host *host = dev_get_drvdata(dev);
> - struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> - int ret;
> -
> - if (host->tuning_mode != SDHCI_TUNING_MODE_3)
> - mmc_retune_needed(host->mmc);
> -
> - ret = sdhci_suspend_host(host);
> - if (ret)
> - return ret;
> -
> - clk_disable(pltfm_host->clk);
> -
> - return 0;
> -}
> -
> -static int sdhci_sirf_resume(struct device *dev)
> -{
> - struct sdhci_host *host = dev_get_drvdata(dev);
> - struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> - int ret;
> -
> - ret = clk_enable(pltfm_host->clk);
> - if (ret) {
> - dev_dbg(dev, "Resume: Error enabling clock\n");
> - return ret;
> - }
> -
> - return sdhci_resume_host(host);
> -}
> -#endif
> -
> -static SIMPLE_DEV_PM_OPS(sdhci_sirf_pm_ops, sdhci_sirf_suspend, sdhci_sirf_resume);
> -
> static const struct of_device_id sdhci_sirf_of_match[] = {
> { .compatible = "sirf,prima2-sdhc" },
> { }
> @@ -277,7 +240,7 @@ static struct platform_driver sdhci_sirf_driver = {
> .driver = {
> .name = "sdhci-sirf",
> .of_match_table = sdhci_sirf_of_match,
> - .pm = &sdhci_sirf_pm_ops,
> + .pm = &sdhci_pltfm_pmops,
> },
> .probe = sdhci_sirf_probe,
> .remove = sdhci_pltfm_unregister,
>
^ permalink raw reply [flat|nested] 17+ messages in thread
* [PATCH v2 1/4] mmc: sdhci: enable/disable the clock in sdhci_pltfm_suspend/resume
@ 2017-08-14 10:28 ` Adrian Hunter
0 siblings, 0 replies; 17+ messages in thread
From: Adrian Hunter @ 2017-08-14 10:28 UTC (permalink / raw)
To: linux-arm-kernel
On 03/08/17 04:44, Masahiro Yamada wrote:
> This commit provides similar cleanups as commit 83eacdfa2529 ("mmc:
> sdhci: disable the clock in sdhci_pltfm_unregister()") did for
> unregister hooks.
>
> Some drivers duplicate code to handle pltfm_host->clk in their own
> hooks. The clock can be handled in sdhci_pltfm.c so that drivers
> can reuse sdhci_pltfm_pmops.
>
> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
I would like to see some Acks from other driver maintainers including ones
that did not previously clk_disable_unprepare(pltfm_host->clk) in suspend
but now do. e.g. sdhci-tegra
> ---
>
> Changes in v2:
> - Fix build error reported by kbuild test robot
>
> drivers/mmc/host/sdhci-brcmstb.c | 37 +------------------------------------
> drivers/mmc/host/sdhci-pltfm.c | 16 +++++++++++++++-
> drivers/mmc/host/sdhci-sirf.c | 39 +--------------------------------------
> 3 files changed, 17 insertions(+), 75 deletions(-)
>
> diff --git a/drivers/mmc/host/sdhci-brcmstb.c b/drivers/mmc/host/sdhci-brcmstb.c
> index e2f638338e8f..6d461fcdd663 100644
> --- a/drivers/mmc/host/sdhci-brcmstb.c
> +++ b/drivers/mmc/host/sdhci-brcmstb.c
> @@ -21,41 +21,6 @@
>
> #include "sdhci-pltfm.h"
>
> -#ifdef CONFIG_PM_SLEEP
> -
> -static int sdhci_brcmstb_suspend(struct device *dev)
> -{
> - struct sdhci_host *host = dev_get_drvdata(dev);
> - struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> - int res;
> -
> - if (host->tuning_mode != SDHCI_TUNING_MODE_3)
> - mmc_retune_needed(host->mmc);
> -
> - res = sdhci_suspend_host(host);
> - if (res)
> - return res;
> - clk_disable_unprepare(pltfm_host->clk);
> - return res;
> -}
> -
> -static int sdhci_brcmstb_resume(struct device *dev)
> -{
> - struct sdhci_host *host = dev_get_drvdata(dev);
> - struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> - int err;
> -
> - err = clk_prepare_enable(pltfm_host->clk);
> - if (err)
> - return err;
> - return sdhci_resume_host(host);
> -}
> -
> -#endif /* CONFIG_PM_SLEEP */
> -
> -static SIMPLE_DEV_PM_OPS(sdhci_brcmstb_pmops, sdhci_brcmstb_suspend,
> - sdhci_brcmstb_resume);
> -
> static const struct sdhci_ops sdhci_brcmstb_ops = {
> .set_clock = sdhci_set_clock,
> .set_bus_width = sdhci_set_bus_width,
> @@ -131,7 +96,7 @@ MODULE_DEVICE_TABLE(of, sdhci_brcm_of_match);
> static struct platform_driver sdhci_brcmstb_driver = {
> .driver = {
> .name = "sdhci-brcmstb",
> - .pm = &sdhci_brcmstb_pmops,
> + .pm = &sdhci_pltfm_pmops,
> .of_match_table = of_match_ptr(sdhci_brcm_of_match),
> },
> .probe = sdhci_brcmstb_probe,
> diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
> index e090d8c42ddb..be9a79d62e22 100644
> --- a/drivers/mmc/host/sdhci-pltfm.c
> +++ b/drivers/mmc/host/sdhci-pltfm.c
> @@ -212,16 +212,30 @@ EXPORT_SYMBOL_GPL(sdhci_pltfm_unregister);
> static int sdhci_pltfm_suspend(struct device *dev)
> {
> struct sdhci_host *host = dev_get_drvdata(dev);
> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> + int ret;
>
> if (host->tuning_mode != SDHCI_TUNING_MODE_3)
> mmc_retune_needed(host->mmc);
>
> - return sdhci_suspend_host(host);
> + ret = sdhci_suspend_host(host);
> + if (ret)
> + return ret;
> +
> + clk_disable_unprepare(pltfm_host->clk);
> +
> + return 0;
> }
>
> static int sdhci_pltfm_resume(struct device *dev)
> {
> struct sdhci_host *host = dev_get_drvdata(dev);
> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> + int ret;
> +
> + ret = clk_prepare_enable(pltfm_host->clk);
> + if (ret)
> + return ret;
>
> return sdhci_resume_host(host);
> }
> diff --git a/drivers/mmc/host/sdhci-sirf.c b/drivers/mmc/host/sdhci-sirf.c
> index c251c6c0a112..0c7aa89df4e2 100644
> --- a/drivers/mmc/host/sdhci-sirf.c
> +++ b/drivers/mmc/host/sdhci-sirf.c
> @@ -230,43 +230,6 @@ static int sdhci_sirf_probe(struct platform_device *pdev)
> return ret;
> }
>
> -#ifdef CONFIG_PM_SLEEP
> -static int sdhci_sirf_suspend(struct device *dev)
> -{
> - struct sdhci_host *host = dev_get_drvdata(dev);
> - struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> - int ret;
> -
> - if (host->tuning_mode != SDHCI_TUNING_MODE_3)
> - mmc_retune_needed(host->mmc);
> -
> - ret = sdhci_suspend_host(host);
> - if (ret)
> - return ret;
> -
> - clk_disable(pltfm_host->clk);
> -
> - return 0;
> -}
> -
> -static int sdhci_sirf_resume(struct device *dev)
> -{
> - struct sdhci_host *host = dev_get_drvdata(dev);
> - struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> - int ret;
> -
> - ret = clk_enable(pltfm_host->clk);
> - if (ret) {
> - dev_dbg(dev, "Resume: Error enabling clock\n");
> - return ret;
> - }
> -
> - return sdhci_resume_host(host);
> -}
> -#endif
> -
> -static SIMPLE_DEV_PM_OPS(sdhci_sirf_pm_ops, sdhci_sirf_suspend, sdhci_sirf_resume);
> -
> static const struct of_device_id sdhci_sirf_of_match[] = {
> { .compatible = "sirf,prima2-sdhc" },
> { }
> @@ -277,7 +240,7 @@ static struct platform_driver sdhci_sirf_driver = {
> .driver = {
> .name = "sdhci-sirf",
> .of_match_table = sdhci_sirf_of_match,
> - .pm = &sdhci_sirf_pm_ops,
> + .pm = &sdhci_pltfm_pmops,
> },
> .probe = sdhci_sirf_probe,
> .remove = sdhci_pltfm_unregister,
>
^ permalink raw reply [flat|nested] 17+ messages in thread
* Re: [PATCH v2 2/4] mmc: sdhci: remove #indef CONFIG_PM around function declarations
2017-08-03 1:44 ` [PATCH v2 2/4] mmc: sdhci: remove #indef CONFIG_PM around function declarations Masahiro Yamada
@ 2017-08-14 10:29 ` Adrian Hunter
0 siblings, 0 replies; 17+ messages in thread
From: Adrian Hunter @ 2017-08-14 10:29 UTC (permalink / raw)
To: Masahiro Yamada, linux-mmc; +Cc: Piotr Sroka, linux-kernel, Ulf Hansson
On 03/08/17 04:44, Masahiro Yamada wrote:
> We need not surround declarations with #ifdef. Besides, drivers may
> want to call these from PM callbacks marked with __maybe_unused.
No, we use #ifdef not __maybe_unused, and removing the #ifdef is misleading.
>
> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
> ---
>
> Changes in v2:
> - Newly added
>
> drivers/mmc/host/sdhci.h | 4 ----
> 1 file changed, 4 deletions(-)
>
> diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
> index 0469fa191493..773b38127da2 100644
> --- a/drivers/mmc/host/sdhci.h
> +++ b/drivers/mmc/host/sdhci.h
> @@ -709,15 +709,11 @@ void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios);
> int sdhci_start_signal_voltage_switch(struct mmc_host *mmc,
> struct mmc_ios *ios);
> void sdhci_enable_sdio_irq(struct mmc_host *mmc, int enable);
> -
> -#ifdef CONFIG_PM
> int sdhci_suspend_host(struct sdhci_host *host);
> int sdhci_resume_host(struct sdhci_host *host);
> void sdhci_enable_irq_wakeups(struct sdhci_host *host);
> int sdhci_runtime_suspend_host(struct sdhci_host *host);
> int sdhci_runtime_resume_host(struct sdhci_host *host);
> -#endif
> -
> void sdhci_cqe_enable(struct mmc_host *mmc);
> void sdhci_cqe_disable(struct mmc_host *mmc, bool recovery);
> bool sdhci_cqe_irq(struct sdhci_host *host, u32 intmask, int *cmd_error,
>
^ permalink raw reply [flat|nested] 17+ messages in thread
* Re: [PATCH v2 4/4] mmc: sdhci-cadence: add suspend / resume support
2017-08-03 1:44 ` [PATCH v2 4/4] mmc: sdhci-cadence: add suspend / resume support Masahiro Yamada
@ 2017-08-14 10:53 ` Adrian Hunter
2017-08-14 15:28 ` Masahiro Yamada
0 siblings, 1 reply; 17+ messages in thread
From: Adrian Hunter @ 2017-08-14 10:53 UTC (permalink / raw)
To: Masahiro Yamada, linux-mmc; +Cc: Piotr Sroka, linux-kernel, Ulf Hansson
On 03/08/17 04:44, Masahiro Yamada wrote:
> Currently, the probe function initializes the PHY, but PHY settings
> are lost during the sleep state. Restore the PHY registers when
> resuming.
>
> To facilitate this, split sdhci_cdns_phy_init() into the DT parse
> part and PHY update part so that the latter can be invoked from the
> resume hook.
>
> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
> ---
One comment below, but I suggest you change the order of the patches and put
this patch first and the clean-up patches afterwards. Then this patch can
progress without having to wait for Acks from other driver maintainers.
>
> Changes in v2: None
>
> drivers/mmc/host/sdhci-cadence.c | 77 +++++++++++++++++++++++++++++++++++-----
> 1 file changed, 68 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/mmc/host/sdhci-cadence.c b/drivers/mmc/host/sdhci-cadence.c
> index 19d5698244b5..7473766801a5 100644
> --- a/drivers/mmc/host/sdhci-cadence.c
> +++ b/drivers/mmc/host/sdhci-cadence.c
> @@ -67,9 +67,16 @@
> */
> #define SDHCI_CDNS_MAX_TUNING_LOOP 40
>
> +struct sdhci_cdns_phy_param {
> + u8 addr;
> + u8 data;
> +};
> +
> struct sdhci_cdns_priv {
> void __iomem *hrs_addr;
> bool enhanced_strobe;
> + unsigned int nr_phy_params;
> + struct sdhci_cdns_phy_param phy_params[0];
> };
>
> struct sdhci_cdns_phy_cfg {
> @@ -115,9 +122,22 @@ static int sdhci_cdns_write_phy_reg(struct sdhci_cdns_priv *priv,
> return 0;
> }
>
> -static int sdhci_cdns_phy_init(struct device_node *np,
> - struct sdhci_cdns_priv *priv)
> +static unsigned int sdhci_cdns_phy_param_count(struct device_node *np)
> {
> + unsigned int count = 0;
> + int i;
> +
> + for (i = 0; i < ARRAY_SIZE(sdhci_cdns_phy_cfgs); i++)
> + if (of_property_read_bool(np, sdhci_cdns_phy_cfgs[i].property))
> + count++;
> +
> + return count;
> +}
> +
> +static void sdhci_cdns_phy_param_parse(struct device_node *np,
> + struct sdhci_cdns_priv *priv)
> +{
> + struct sdhci_cdns_phy_param *p = priv->phy_params;
> u32 val;
> int ret, i;
>
> @@ -127,9 +147,19 @@ static int sdhci_cdns_phy_init(struct device_node *np,
> if (ret)
> continue;
>
> - ret = sdhci_cdns_write_phy_reg(priv,
> - sdhci_cdns_phy_cfgs[i].addr,
> - val);
> + p->addr = sdhci_cdns_phy_cfgs[i].addr;
> + p->data = val;
> + p++;
> + }
> +}
> +
> +static int sdhci_cdns_phy_init(struct sdhci_cdns_priv *priv)
> +{
> + int ret, i;
> +
> + for (i = 0; i < priv->nr_phy_params; i++) {
> + ret = sdhci_cdns_write_phy_reg(priv, priv->phy_params[i].addr,
> + priv->phy_params[i].data);
> if (ret)
> return ret;
> }
> @@ -302,6 +332,8 @@ static int sdhci_cdns_probe(struct platform_device *pdev)
> struct sdhci_pltfm_host *pltfm_host;
> struct sdhci_cdns_priv *priv;
> struct clk *clk;
> + size_t priv_size;
> + unsigned int nr_phy_params;
> int ret;
> struct device *dev = &pdev->dev;
>
> @@ -313,7 +345,9 @@ static int sdhci_cdns_probe(struct platform_device *pdev)
> if (ret)
> return ret;
>
> - host = sdhci_pltfm_init(pdev, &sdhci_cdns_pltfm_data, sizeof(*priv));
> + nr_phy_params = sdhci_cdns_phy_param_count(dev->of_node);
> + priv_size = sizeof(*priv) + sizeof(priv->phy_params[0]) * nr_phy_params;
> + host = sdhci_pltfm_init(pdev, &sdhci_cdns_pltfm_data, priv_size);
> if (IS_ERR(host)) {
> ret = PTR_ERR(host);
> goto disable_clk;
> @@ -322,7 +356,8 @@ static int sdhci_cdns_probe(struct platform_device *pdev)
> pltfm_host = sdhci_priv(host);
> pltfm_host->clk = clk;
>
> - priv = sdhci_cdns_priv(host);
> + priv = sdhci_pltfm_priv(pltfm_host);
> + priv->nr_phy_params = nr_phy_params;
> priv->hrs_addr = host->ioaddr;
> priv->enhanced_strobe = false;
> host->ioaddr += SDHCI_CDNS_SRS_BASE;
> @@ -336,7 +371,9 @@ static int sdhci_cdns_probe(struct platform_device *pdev)
> if (ret)
> goto free;
>
> - ret = sdhci_cdns_phy_init(dev->of_node, priv);
> + sdhci_cdns_phy_param_parse(dev->of_node, priv);
> +
> + ret = sdhci_cdns_phy_init(priv);
> if (ret)
> goto free;
>
> @@ -353,6 +390,28 @@ static int sdhci_cdns_probe(struct platform_device *pdev)
> return ret;
> }
>
> +static int __maybe_unused sdhci_cdns_resume(struct device *dev)
We don't use __maybe_unused in this case, we use #ifdef CONFIG_PM_SLEEP
> +{
> + struct sdhci_host *host = dev_get_drvdata(dev);
> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> + struct sdhci_cdns_priv *priv = sdhci_pltfm_priv(pltfm_host);
> + int ret;
> +
> + ret = clk_prepare_enable(pltfm_host->clk);
> + if (ret)
> + return ret;
> +
> + ret = sdhci_cdns_phy_init(priv);
> + if (ret)
> + return ret;
> +
> + return sdhci_resume_host(host);
> +}
> +
> +static const struct dev_pm_ops sdhci_cdns_pm_ops = {
> + SET_SYSTEM_SLEEP_PM_OPS(sdhci_pltfm_suspend, sdhci_cdns_resume)
> +};
> +
> static const struct of_device_id sdhci_cdns_match[] = {
> { .compatible = "socionext,uniphier-sd4hc" },
> { .compatible = "cdns,sd4hc" },
> @@ -363,7 +422,7 @@ MODULE_DEVICE_TABLE(of, sdhci_cdns_match);
> static struct platform_driver sdhci_cdns_driver = {
> .driver = {
> .name = "sdhci-cdns",
> - .pm = &sdhci_pltfm_pmops,
> + .pm = &sdhci_cdns_pm_ops,
> .of_match_table = sdhci_cdns_match,
> },
> .probe = sdhci_cdns_probe,
>
^ permalink raw reply [flat|nested] 17+ messages in thread
* Re: [PATCH v2 4/4] mmc: sdhci-cadence: add suspend / resume support
2017-08-14 10:53 ` Adrian Hunter
@ 2017-08-14 15:28 ` Masahiro Yamada
2017-08-15 6:46 ` Adrian Hunter
0 siblings, 1 reply; 17+ messages in thread
From: Masahiro Yamada @ 2017-08-14 15:28 UTC (permalink / raw)
To: Adrian Hunter
Cc: linux-mmc, Piotr Sroka, Linux Kernel Mailing List, Ulf Hansson
Hi Adrian,
2017-08-14 19:53 GMT+09:00 Adrian Hunter <adrian.hunter@intel.com>:
>> @@ -353,6 +390,28 @@ static int sdhci_cdns_probe(struct platform_device *pdev)
>> return ret;
>> }
>>
>> +static int __maybe_unused sdhci_cdns_resume(struct device *dev)
>
> We don't use __maybe_unused in this case, we use #ifdef CONFIG_PM_SLEEP
Could you tell me the reason
why #ifdef CONFIG_PM_SLEEP is preferable?
I see lots of __maybe_unused for suspend/resume hooks in drivers.
--
Best Regards
Masahiro Yamada
^ permalink raw reply [flat|nested] 17+ messages in thread
* Re: [PATCH v2 4/4] mmc: sdhci-cadence: add suspend / resume support
2017-08-14 15:28 ` Masahiro Yamada
@ 2017-08-15 6:46 ` Adrian Hunter
0 siblings, 0 replies; 17+ messages in thread
From: Adrian Hunter @ 2017-08-15 6:46 UTC (permalink / raw)
To: Masahiro Yamada
Cc: linux-mmc, Piotr Sroka, Linux Kernel Mailing List, Ulf Hansson
On 14/08/17 18:28, Masahiro Yamada wrote:
> Hi Adrian,
>
>
> 2017-08-14 19:53 GMT+09:00 Adrian Hunter <adrian.hunter@intel.com>:
>
>>> @@ -353,6 +390,28 @@ static int sdhci_cdns_probe(struct platform_device *pdev)
>>> return ret;
>>> }
>>>
>>> +static int __maybe_unused sdhci_cdns_resume(struct device *dev)
>>
>> We don't use __maybe_unused in this case, we use #ifdef CONFIG_PM_SLEEP
>
>
> Could you tell me the reason
> why #ifdef CONFIG_PM_SLEEP is preferable?
>
> I see lots of __maybe_unused for suspend/resume hooks in drivers.
Not in sdhci drivers. It is easier for the maintainer to have consistency
across the code they maintain.
^ permalink raw reply [flat|nested] 17+ messages in thread
end of thread, other threads:[~2017-08-15 6:53 UTC | newest]
Thread overview: 17+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-08-03 1:44 [PATCH v2 0/4] mmc: sdhci: refactor PM in sdhci-pltfm add support PM for cadence port Masahiro Yamada
2017-08-03 1:44 ` Masahiro Yamada
2017-08-03 1:44 ` Masahiro Yamada
2017-08-03 1:44 ` [PATCH v2 1/4] mmc: sdhci: enable/disable the clock in sdhci_pltfm_suspend/resume Masahiro Yamada
2017-08-03 1:44 ` Masahiro Yamada
2017-08-03 1:44 ` Masahiro Yamada
2017-08-14 10:28 ` Adrian Hunter
2017-08-14 10:28 ` Adrian Hunter
2017-08-14 10:28 ` Adrian Hunter
2017-08-14 10:28 ` Adrian Hunter
2017-08-03 1:44 ` [PATCH v2 2/4] mmc: sdhci: remove #indef CONFIG_PM around function declarations Masahiro Yamada
2017-08-14 10:29 ` Adrian Hunter
2017-08-03 1:44 ` [PATCH v2 3/4] mmc: sdhci-pltfm: export sdhci_pltfm_suspend/resume Masahiro Yamada
2017-08-03 1:44 ` [PATCH v2 4/4] mmc: sdhci-cadence: add suspend / resume support Masahiro Yamada
2017-08-14 10:53 ` Adrian Hunter
2017-08-14 15:28 ` Masahiro Yamada
2017-08-15 6:46 ` Adrian Hunter
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