Re: [PATCH] Revert "mmc: dw_mmc-rockchip: add runtime PM support"

From: Randy Li
Date: Thu Dec 29 2016 - 05:25:51 EST




On 12/29/2016 03:25 PM, Shawn Lin wrote:
On 2016/12/29 15:13, Jaehoon Chung wrote:
On 12/29/2016 12:02 PM, Jaehoon Chung wrote:
Hi Randy,

On 12/29/2016 12:34 AM, Randy Li wrote:
This reverts commit f90142683f04bcb0729bf0df67a5e29562b725b9.
It is reported that making RK3288 can't boot from eMMC/MMC.

Could you explain in more detail?
As you mentioned, this patch is making that RK3288 can't boot..then why?
Good way should be that finds the main reason and fixes it.
Not just revert.

To Shawn,

Could you check this? If you have rk3288..
If it's not working fine, it needs to revert this patch until finding
the problem.


Hrmm.....as that patchset was tested based on rk3288 and rk3368, so I
need to know which board Randy are using now and could you share some
Sorry, XZY has asked me about this in the morning and I answer him that I would give a feedback at home, so I didn't notice this mail.
The board is Firefly reload. but the reporter told me that Firefly release also have the same problem.
log?

I will have a look at it.


Best Regards,
Jaehoon Chung


Best Regards,
Jaehoon Chung


Signed-off-by: Randy Li <ayaka@xxxxxxxxxxx>
---
drivers/mmc/host/dw_mmc-rockchip.c | 41
+++-----------------------------------
1 file changed, 3 insertions(+), 38 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc-rockchip.c
b/drivers/mmc/host/dw_mmc-rockchip.c
index 9a46e46..3189234 100644
--- a/drivers/mmc/host/dw_mmc-rockchip.c
+++ b/drivers/mmc/host/dw_mmc-rockchip.c
@@ -14,7 +14,6 @@
#include <linux/mmc/dw_mmc.h>
#include <linux/of_address.h>
#include <linux/mmc/slot-gpio.h>
-#include <linux/pm_runtime.h>
#include <linux/slab.h>

#include "dw_mmc.h"
@@ -327,7 +326,6 @@ static int dw_mci_rockchip_probe(struct
platform_device *pdev)
{
const struct dw_mci_drv_data *drv_data;
const struct of_device_id *match;
- int ret;

if (!pdev->dev.of_node)
return -ENODEV;
@@ -335,49 +333,16 @@ static int dw_mci_rockchip_probe(struct
platform_device *pdev)
match = of_match_node(dw_mci_rockchip_match, pdev->dev.of_node);
drv_data = match->data;

- pm_runtime_get_noresume(&pdev->dev);
- pm_runtime_set_active(&pdev->dev);
- pm_runtime_enable(&pdev->dev);
- pm_runtime_set_autosuspend_delay(&pdev->dev, 50);
- pm_runtime_use_autosuspend(&pdev->dev);
-
- ret = dw_mci_pltfm_register(pdev, drv_data);
- if (ret) {
- pm_runtime_disable(&pdev->dev);
- pm_runtime_set_suspended(&pdev->dev);
- pm_runtime_put_noidle(&pdev->dev);
- return ret;
- }
-
- pm_runtime_put_autosuspend(&pdev->dev);
-
- return 0;
+ return dw_mci_pltfm_register(pdev, drv_data);
}

-static int dw_mci_rockchip_remove(struct platform_device *pdev)
-{
- pm_runtime_get_sync(&pdev->dev);
- pm_runtime_disable(&pdev->dev);
- pm_runtime_put_noidle(&pdev->dev);
-
- return dw_mci_pltfm_remove(pdev);
-}
-
-static const struct dev_pm_ops dw_mci_rockchip_dev_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
- pm_runtime_force_resume)
- SET_RUNTIME_PM_OPS(dw_mci_runtime_suspend,
- dw_mci_runtime_resume,
- NULL)
-};
-
static struct platform_driver dw_mci_rockchip_pltfm_driver = {
.probe = dw_mci_rockchip_probe,
- .remove = dw_mci_rockchip_remove,
+ .remove = dw_mci_pltfm_remove,
.driver = {
.name = "dwmmc_rockchip",
.of_match_table = dw_mci_rockchip_match,
- .pm = &dw_mci_rockchip_dev_pm_ops,
+ .pm = &dw_mci_pltfm_pmops,
},
};



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--
Randy Li
The third produce department
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