On Fri, May 11, 2018 at 08:19:34PM +0530, Rajesh Yadav wrote:
> Mdss main power supply (mdss_gdsc) is implemented as a
> generic power domain and mdss top level wrapper device
> manage it via runtime_pm. Remove custom power management
> code from dpu_power_handle.
>
> Changes in v2:
> - resolved merge conflict in dpu_power_resource_init
> - dropped (Reviewed-by: Sean Paul) due to above change
>
> Signed-off-by: Rajesh Yadav <rya...@codeaurora.org>
> ---
> drivers/gpu/drm/msm/dpu_power_handle.c | 194
> +--------------------------------
> drivers/gpu/drm/msm/dpu_power_handle.h | 2 -
> 2 files changed, 3 insertions(+), 193 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/dpu_power_handle.c
> b/drivers/gpu/drm/msm/dpu_power_handle.c
> index 12602ae..77be106 100644
> --- a/drivers/gpu/drm/msm/dpu_power_handle.c
> +++ b/drivers/gpu/drm/msm/dpu_power_handle.c
/snip
> @@ -614,33 +470,18 @@ int dpu_power_resource_init(struct platform_device
> *pdev,
> struct dpu_power_handle *phandle)
> {
> int rc = 0, i;
> - struct dss_module_power *mp;
>
> if (!phandle || !pdev) {
Can this ever happen? It seems like another case of unnecessary checking.
Aside from this,
Reviewed-by: Sean Paul <seanp...@chromium.org>
> pr_err("invalid input param\n");
> - rc = -EINVAL;
> - goto end;
> - }
> - mp = &phandle->mp;
> - phandle->dev = &pdev->dev;
> -
> - rc = dpu_power_parse_dt_supply(pdev, mp);
> - if (rc) {
> - pr_err("device vreg supply parsing failed\n");
> - return rc;
> + return -EINVAL;
> }
>
> - rc = msm_dss_config_vreg(&pdev->dev,
> - mp->vreg_config, mp->num_vreg, 1);
> - if (rc) {
> - pr_err("vreg config failed rc=%d\n", rc);
> - goto vreg_err;
> - }
> + phandle->dev = &pdev->dev;
>
> rc = dpu_power_reg_bus_parse(pdev, phandle);
> if (rc) {
> pr_err("register bus parse failed rc=%d\n", rc);
> - goto bus_err;
> + return rc;
> }
>
> for (i = DPU_POWER_HANDLE_DBUS_ID_MNOC;
> @@ -666,19 +507,12 @@ int dpu_power_resource_init(struct platform_device
> *pdev,
> for (i--; i >= 0; i--)
> dpu_power_data_bus_unregister(&phandle->data_bus_handle[i]);
> dpu_power_reg_bus_unregister(phandle->reg_bus_hdl);
> -bus_err:
> - msm_dss_config_vreg(&pdev->dev, mp->vreg_config, mp->num_vreg, 0);
> -vreg_err:
> - if (mp->vreg_config)
> - devm_kfree(&pdev->dev, mp->vreg_config);
> - mp->num_vreg = 0;
> return rc;
> }
>
> void dpu_power_resource_deinit(struct platform_device *pdev,
> struct dpu_power_handle *phandle)
> {
> - struct dss_module_power *mp;
> struct dpu_power_client *curr_client, *next_client;
> struct dpu_power_event *curr_event, *next_event;
> int i;
> @@ -687,7 +521,6 @@ void dpu_power_resource_deinit(struct platform_device
> *pdev,
> pr_err("invalid input param\n");
> return;
> }
> - mp = &phandle->mp;
>
> mutex_lock(&phandle->phandle_lock);
> list_for_each_entry_safe(curr_client, next_client,
> @@ -713,13 +546,6 @@ void dpu_power_resource_deinit(struct platform_device
> *pdev,
> dpu_power_data_bus_unregister(&phandle->data_bus_handle[i]);
>
> dpu_power_reg_bus_unregister(phandle->reg_bus_hdl);
> -
> - msm_dss_config_vreg(&pdev->dev, mp->vreg_config, mp->num_vreg, 0);
> -
> - if (mp->vreg_config)
> - devm_kfree(&pdev->dev, mp->vreg_config);
> -
> - mp->num_vreg = 0;
> }
>
> int dpu_power_resource_enable(struct dpu_power_handle *phandle,
> @@ -729,15 +555,12 @@ int dpu_power_resource_enable(struct dpu_power_handle
> *phandle,
> bool changed = false;
> u32 max_usecase_ndx = VOTE_INDEX_DISABLE, prev_usecase_ndx;
> struct dpu_power_client *client;
> - struct dss_module_power *mp;
>
> if (!phandle || !pclient) {
> pr_err("invalid input argument\n");
> return -EINVAL;
> }
>
> - mp = &phandle->mp;
> -
> mutex_lock(&phandle->phandle_lock);
> if (enable)
> pclient->refcount++;
> @@ -782,13 +605,6 @@ int dpu_power_resource_enable(struct dpu_power_handle
> *phandle,
> }
> }
>
> - rc = msm_dss_enable_vreg(mp->vreg_config, mp->num_vreg,
> - enable);
> - if (rc) {
> - pr_err("failed to enable vregs rc=%d\n", rc);
> - goto vreg_err;
> - }
> -
> rc = dpu_power_reg_bus_update(phandle->reg_bus_hdl,
> max_usecase_ndx);
> if (rc) {
> @@ -806,8 +622,6 @@ int dpu_power_resource_enable(struct dpu_power_handle
> *phandle,
> dpu_power_reg_bus_update(phandle->reg_bus_hdl,
> max_usecase_ndx);
>
> - msm_dss_enable_vreg(mp->vreg_config, mp->num_vreg,
> - enable);
> for (i = 0 ; i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++)
> dpu_power_data_bus_update(&phandle->data_bus_handle[i],
> enable);
> @@ -821,8 +635,6 @@ int dpu_power_resource_enable(struct dpu_power_handle
> *phandle,
> return rc;
>
> reg_bus_hdl_err:
> - msm_dss_enable_vreg(mp->vreg_config, mp->num_vreg, 0);
> -vreg_err:
> for (i = 0 ; i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++)
> dpu_power_data_bus_update(&phandle->data_bus_handle[i], 0);
> data_bus_hdl_err:
> diff --git a/drivers/gpu/drm/msm/dpu_power_handle.h
> b/drivers/gpu/drm/msm/dpu_power_handle.h
> index 83f048d..9a6d4b9 100644
> --- a/drivers/gpu/drm/msm/dpu_power_handle.h
> +++ b/drivers/gpu/drm/msm/dpu_power_handle.h
> @@ -147,7 +147,6 @@ struct dpu_power_event {
>
> /**
> * struct dpu_power_handle: power handle main struct
> - * @mp: module power for clock and regulator
> * @client_clist: master list to store all clients
> * @phandle_lock: lock to synchronize the enable/disable
> * @dev: pointer to device structure
> @@ -157,7 +156,6 @@ struct dpu_power_event {
> * @event_list: current power handle event list
> */
> struct dpu_power_handle {
> - struct dss_module_power mp;
> struct list_head power_client_clist;
> struct mutex phandle_lock;
> struct device *dev;
> --
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
>
--
Sean Paul, Software Engineer, Google / Chromium OS
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