[PATCH 22/48] drm: omapdrm: dss: Pass DSS private structure to runtime PM functions
Sebastian Reichel
sre at kernel.org
Mon Oct 16 08:39:19 UTC 2017
Hi,
On Fri, Oct 13, 2017 at 05:59:18PM +0300, Laurent Pinchart wrote:
> To prepare for the removal of the global variable storing DSS private
> data, pass its pointer to the dss_runtime_{get,put}() functions.
>
> As this requires getting hold of the DSS private structure in the
> callers, we expose the structure through an opaque pointer that can be
> retrieved through a new dss_device_get() function. The function
> currently returns a pointer to the global data structure, and will later
> be updated to get the pointer from device driver data when the DSS
> private structure will be allocated dynamically.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> ---
Reviewed-by: Sebastian Reichel <sebastian.reichel at collabora.co.uk>
-- Sebastian
> drivers/gpu/drm/omapdrm/dss/dsi.c | 7 +++++--
> drivers/gpu/drm/omapdrm/dss/dss.c | 37 ++++++++++++++++++++-------------
> drivers/gpu/drm/omapdrm/dss/dss.h | 13 ++++++++----
> drivers/gpu/drm/omapdrm/dss/hdmi.h | 6 ++++--
> drivers/gpu/drm/omapdrm/dss/hdmi4.c | 3 ++-
> drivers/gpu/drm/omapdrm/dss/hdmi5.c | 3 ++-
> drivers/gpu/drm/omapdrm/dss/hdmi_pll.c | 10 +++++----
> drivers/gpu/drm/omapdrm/dss/video-pll.c | 12 ++++++-----
> 8 files changed, 58 insertions(+), 33 deletions(-)
>
> diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c
> index a64e6a39ebf1..1dab308c9bc1 100644
> --- a/drivers/gpu/drm/omapdrm/dss/dsi.c
> +++ b/drivers/gpu/drm/omapdrm/dss/dsi.c
> @@ -5333,7 +5333,8 @@ static const struct dss_pll_hw dss_omap5_dsi_pll_hw = {
> .has_refsel = true,
> };
>
> -static int dsi_init_pll_data(struct platform_device *dsidev)
> +static int dsi_init_pll_data(struct dss_device *dss,
> + struct platform_device *dsidev)
> {
> struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
> struct dss_pll *pll = &dsi->pll;
> @@ -5352,6 +5353,7 @@ static int dsi_init_pll_data(struct platform_device *dsidev)
> pll->base = dsi->pll_base;
> pll->hw = dsi->data->pll_hw;
> pll->ops = &dsi_pll_ops;
> + pll->dss = dss;
>
> r = dss_pll_register(pll);
> if (r)
> @@ -5428,6 +5430,7 @@ static const struct soc_device_attribute dsi_soc_devices[] = {
> static int dsi_bind(struct device *dev, struct device *master, void *data)
> {
> struct platform_device *dsidev = to_platform_device(dev);
> + struct dss_device *dss = dss_get_device(master);
> const struct soc_device_attribute *soc;
> const struct dsi_module_id_data *d;
> u32 rev;
> @@ -5538,7 +5541,7 @@ static int dsi_bind(struct device *dev, struct device *master, void *data)
> if (r)
> return r;
>
> - dsi_init_pll_data(dsidev);
> + dsi_init_pll_data(dss, dsidev);
>
> pm_runtime_enable(&dsidev->dev);
>
> diff --git a/drivers/gpu/drm/omapdrm/dss/dss.c b/drivers/gpu/drm/omapdrm/dss/dss.c
> index b45641f6a844..a83277ebe1ef 100644
> --- a/drivers/gpu/drm/omapdrm/dss/dss.c
> +++ b/drivers/gpu/drm/omapdrm/dss/dss.c
> @@ -93,7 +93,7 @@ struct dss_features {
> bool has_lcd_clk_src;
> };
>
> -static struct {
> +struct dss_device {
> struct platform_device *pdev;
> struct omap_drm_private drm;
>
> @@ -125,7 +125,9 @@ static struct {
>
> struct dss_pll *video1_pll;
> struct dss_pll *video2_pll;
> -} dss;
> +};
> +
> +static struct dss_device dss;
>
> static const char * const dss_generic_clk_source_names[] = {
> [DSS_CLK_SRC_FCK] = "FCK",
> @@ -382,7 +384,7 @@ static void dss_dump_clocks(struct seq_file *s)
> const char *fclk_name;
> unsigned long fclk_rate;
>
> - if (dss_runtime_get())
> + if (dss_runtime_get(&dss))
> return;
>
> seq_printf(s, "- DSS -\n");
> @@ -394,7 +396,7 @@ static void dss_dump_clocks(struct seq_file *s)
> fclk_name,
> fclk_rate);
>
> - dss_runtime_put();
> + dss_runtime_put(&dss);
> }
> #endif
>
> @@ -402,7 +404,7 @@ static int dss_dump_regs(struct seq_file *s, void *p)
> {
> #define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dss_read_reg(r))
>
> - if (dss_runtime_get())
> + if (dss_runtime_get(&dss))
> return 0;
>
> DUMPREG(DSS_REVISION);
> @@ -416,7 +418,7 @@ static int dss_dump_regs(struct seq_file *s, void *p)
> DUMPREG(DSS_SDI_STATUS);
> }
>
> - dss_runtime_put();
> + dss_runtime_put(&dss);
> #undef DUMPREG
> return 0;
> }
> @@ -889,27 +891,32 @@ static void dss_put_clocks(void)
> clk_put(dss.parent_clk);
> }
>
> -int dss_runtime_get(void)
> +int dss_runtime_get(struct dss_device *dss)
> {
> int r;
>
> DSSDBG("dss_runtime_get\n");
>
> - r = pm_runtime_get_sync(&dss.pdev->dev);
> + r = pm_runtime_get_sync(&dss->pdev->dev);
> WARN_ON(r < 0);
> return r < 0 ? r : 0;
> }
>
> -void dss_runtime_put(void)
> +void dss_runtime_put(struct dss_device *dss)
> {
> int r;
>
> DSSDBG("dss_runtime_put\n");
>
> - r = pm_runtime_put_sync(&dss.pdev->dev);
> + r = pm_runtime_put_sync(&dss->pdev->dev);
> WARN_ON(r < 0 && r != -ENOSYS && r != -EBUSY);
> }
>
> +struct dss_device *dss_get_device(struct device *dev)
> +{
> + return &dss;
> +}
> +
> /* DEBUGFS */
> #if defined(CONFIG_OMAP2_DSS_DEBUGFS)
> static int dss_debug_dump_clocks(struct seq_file *s, void *p)
> @@ -1297,13 +1304,15 @@ static int dss_video_pll_probe(struct platform_device *pdev)
> }
>
> if (of_property_match_string(np, "reg-names", "pll1") >= 0) {
> - dss.video1_pll = dss_video_pll_init(pdev, 0, pll_regulator);
> + dss.video1_pll = dss_video_pll_init(&dss, pdev, 0,
> + pll_regulator);
> if (IS_ERR(dss.video1_pll))
> return PTR_ERR(dss.video1_pll);
> }
>
> if (of_property_match_string(np, "reg-names", "pll2") >= 0) {
> - dss.video2_pll = dss_video_pll_init(pdev, 1, pll_regulator);
> + dss.video2_pll = dss_video_pll_init(&dss, pdev, 1,
> + pll_regulator);
> if (IS_ERR(dss.video2_pll)) {
> dss_video_pll_uninit(dss.video1_pll);
> return PTR_ERR(dss.video2_pll);
> @@ -1361,7 +1370,7 @@ static int dss_bind(struct device *dev)
>
> pm_runtime_enable(&pdev->dev);
>
> - r = dss_runtime_get();
> + r = dss_runtime_get(&dss);
> if (r)
> goto err_runtime_get;
>
> @@ -1386,7 +1395,7 @@ static int dss_bind(struct device *dev)
> rev = dss_read_reg(DSS_REVISION);
> pr_info("OMAP DSS rev %d.%d\n", FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));
>
> - dss_runtime_put();
> + dss_runtime_put(&dss);
>
> r = component_bind_all(&pdev->dev, NULL);
> if (r)
> diff --git a/drivers/gpu/drm/omapdrm/dss/dss.h b/drivers/gpu/drm/omapdrm/dss/dss.h
> index e688e937da28..009b7ef200cd 100644
> --- a/drivers/gpu/drm/omapdrm/dss/dss.h
> +++ b/drivers/gpu/drm/omapdrm/dss/dss.h
> @@ -29,6 +29,7 @@
>
> struct dentry;
> struct dss_debugfs_entry;
> +struct dss_device;
> struct platform_device;
> struct seq_file;
>
> @@ -198,6 +199,7 @@ struct dss_pll_hw {
> struct dss_pll {
> const char *name;
> enum dss_pll_id id;
> + struct dss_device *dss;
>
> struct clk *clkin;
> struct regulator *regulator;
> @@ -277,8 +279,10 @@ static inline void dss_debugfs_remove_file(struct dss_debugfs_entry *entry)
> int dss_init_platform_driver(void) __init;
> void dss_uninit_platform_driver(void);
>
> -int dss_runtime_get(void);
> -void dss_runtime_put(void);
> +struct dss_device *dss_get_device(struct device *dev);
> +
> +int dss_runtime_get(struct dss_device *dss);
> +void dss_runtime_put(struct dss_device *dss);
>
> unsigned long dss_get_dispc_clk_rate(void);
> unsigned long dss_get_max_fck_rate(void);
> @@ -289,8 +293,9 @@ enum dss_hdmi_venc_clk_source_select dss_get_hdmi_venc_clk_source(void);
> const char *dss_get_clk_source_name(enum dss_clk_source clk_src);
>
> /* DSS VIDEO PLL */
> -struct dss_pll *dss_video_pll_init(struct platform_device *pdev, int id,
> - struct regulator *regulator);
> +struct dss_pll *dss_video_pll_init(struct dss_device *dss,
> + struct platform_device *pdev, int id,
> + struct regulator *regulator);
> void dss_video_pll_uninit(struct dss_pll *pll);
>
> void dss_ctrl_pll_enable(enum dss_pll_id pll_id, bool enable);
> diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi.h b/drivers/gpu/drm/omapdrm/dss/hdmi.h
> index a66f8ff06c24..4dbc4f3d728c 100644
> --- a/drivers/gpu/drm/omapdrm/dss/hdmi.h
> +++ b/drivers/gpu/drm/omapdrm/dss/hdmi.h
> @@ -29,6 +29,8 @@
> #include "omapdss.h"
> #include "dss.h"
>
> +struct dss_device;
> +
> /* HDMI Wrapper */
>
> #define HDMI_WP_REVISION 0x0
> @@ -324,8 +326,8 @@ phys_addr_t hdmi_wp_get_audio_dma_addr(struct hdmi_wp_data *wp);
>
> /* HDMI PLL funcs */
> void hdmi_pll_dump(struct hdmi_pll_data *pll, struct seq_file *s);
> -int hdmi_pll_init(struct platform_device *pdev, struct hdmi_pll_data *pll,
> - struct hdmi_wp_data *wp);
> +int hdmi_pll_init(struct dss_device *dss, struct platform_device *pdev,
> + struct hdmi_pll_data *pll, struct hdmi_wp_data *wp);
> void hdmi_pll_uninit(struct hdmi_pll_data *hpll);
>
> /* HDMI PHY funcs */
> diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi4.c b/drivers/gpu/drm/omapdrm/dss/hdmi4.c
> index ada4e3a9dba7..d84eba8440c8 100644
> --- a/drivers/gpu/drm/omapdrm/dss/hdmi4.c
> +++ b/drivers/gpu/drm/omapdrm/dss/hdmi4.c
> @@ -717,6 +717,7 @@ static int hdmi_audio_register(struct device *dev)
> static int hdmi4_bind(struct device *dev, struct device *master, void *data)
> {
> struct platform_device *pdev = to_platform_device(dev);
> + struct dss_device *dss = dss_get_device(master);
> int r;
> int irq;
>
> @@ -734,7 +735,7 @@ static int hdmi4_bind(struct device *dev, struct device *master, void *data)
> if (r)
> return r;
>
> - r = hdmi_pll_init(pdev, &hdmi.pll, &hdmi.wp);
> + r = hdmi_pll_init(dss, pdev, &hdmi.pll, &hdmi.wp);
> if (r)
> return r;
>
> diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi5.c b/drivers/gpu/drm/omapdrm/dss/hdmi5.c
> index 00ea975b75f9..64cfed89c79b 100644
> --- a/drivers/gpu/drm/omapdrm/dss/hdmi5.c
> +++ b/drivers/gpu/drm/omapdrm/dss/hdmi5.c
> @@ -719,6 +719,7 @@ static int hdmi_audio_register(struct device *dev)
> static int hdmi5_bind(struct device *dev, struct device *master, void *data)
> {
> struct platform_device *pdev = to_platform_device(dev);
> + struct dss_device *dss = dss_get_device(master);
> int r;
> int irq;
>
> @@ -736,7 +737,7 @@ static int hdmi5_bind(struct device *dev, struct device *master, void *data)
> if (r)
> return r;
>
> - r = hdmi_pll_init(pdev, &hdmi.pll, &hdmi.wp);
> + r = hdmi_pll_init(dss, pdev, &hdmi.pll, &hdmi.wp);
> if (r)
> return r;
>
> diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi_pll.c b/drivers/gpu/drm/omapdrm/dss/hdmi_pll.c
> index 55bee81f4dd5..9915354b66c9 100644
> --- a/drivers/gpu/drm/omapdrm/dss/hdmi_pll.c
> +++ b/drivers/gpu/drm/omapdrm/dss/hdmi_pll.c
> @@ -128,7 +128,8 @@ static const struct dss_pll_hw dss_omap5_hdmi_pll_hw = {
> .has_refsel = true,
> };
>
> -static int hdmi_init_pll_data(struct platform_device *pdev,
> +static int hdmi_init_pll_data(struct dss_device *dss,
> + struct platform_device *pdev,
> struct hdmi_pll_data *hpll)
> {
> struct dss_pll *pll = &hpll->pll;
> @@ -145,6 +146,7 @@ static int hdmi_init_pll_data(struct platform_device *pdev,
> pll->id = DSS_PLL_HDMI;
> pll->base = hpll->base;
> pll->clkin = clk;
> + pll->dss = dss;
>
> if (hpll->wp->version == 4)
> pll->hw = &dss_omap4_hdmi_pll_hw;
> @@ -160,8 +162,8 @@ static int hdmi_init_pll_data(struct platform_device *pdev,
> return 0;
> }
>
> -int hdmi_pll_init(struct platform_device *pdev, struct hdmi_pll_data *pll,
> - struct hdmi_wp_data *wp)
> +int hdmi_pll_init(struct dss_device *dss, struct platform_device *pdev,
> + struct hdmi_pll_data *pll, struct hdmi_wp_data *wp)
> {
> int r;
> struct resource *res;
> @@ -174,7 +176,7 @@ int hdmi_pll_init(struct platform_device *pdev, struct hdmi_pll_data *pll,
> if (IS_ERR(pll->base))
> return PTR_ERR(pll->base);
>
> - r = hdmi_init_pll_data(pdev, pll);
> + r = hdmi_init_pll_data(dss, pdev, pll);
> if (r) {
> DSSERR("failed to init HDMI PLL\n");
> return r;
> diff --git a/drivers/gpu/drm/omapdrm/dss/video-pll.c b/drivers/gpu/drm/omapdrm/dss/video-pll.c
> index 38a239cc5e04..7ef30f61c52b 100644
> --- a/drivers/gpu/drm/omapdrm/dss/video-pll.c
> +++ b/drivers/gpu/drm/omapdrm/dss/video-pll.c
> @@ -62,7 +62,7 @@ static int dss_video_pll_enable(struct dss_pll *pll)
> struct dss_video_pll *vpll = container_of(pll, struct dss_video_pll, pll);
> int r;
>
> - r = dss_runtime_get();
> + r = dss_runtime_get(pll->dss);
> if (r)
> return r;
>
> @@ -81,7 +81,7 @@ static int dss_video_pll_enable(struct dss_pll *pll)
> err_reset:
> dss_dpll_disable_scp_clk(vpll);
> dss_ctrl_pll_enable(pll->id, false);
> - dss_runtime_put();
> + dss_runtime_put(pll->dss);
>
> return r;
> }
> @@ -96,7 +96,7 @@ static void dss_video_pll_disable(struct dss_pll *pll)
>
> dss_ctrl_pll_enable(pll->id, false);
>
> - dss_runtime_put();
> + dss_runtime_put(pll->dss);
> }
>
> static const struct dss_pll_ops dss_pll_ops = {
> @@ -134,8 +134,9 @@ static const struct dss_pll_hw dss_dra7_video_pll_hw = {
> .errata_i886 = true,
> };
>
> -struct dss_pll *dss_video_pll_init(struct platform_device *pdev, int id,
> - struct regulator *regulator)
> +struct dss_pll *dss_video_pll_init(struct dss_device *dss,
> + struct platform_device *pdev, int id,
> + struct regulator *regulator)
> {
> const char * const reg_name[] = { "pll1", "pll2" };
> const char * const clkctrl_name[] = { "pll1_clkctrl", "pll2_clkctrl" };
> @@ -187,6 +188,7 @@ struct dss_pll *dss_video_pll_init(struct platform_device *pdev, int id,
> pll->base = pll_base;
> pll->hw = &dss_dra7_video_pll_hw;
> pll->ops = &dss_pll_ops;
> + pll->dss = dss;
>
> r = dss_pll_register(pll);
> if (r)
> --
> Regards,
>
> Laurent Pinchart
>
> _______________________________________________
> dri-devel mailing list
> dri-devel at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
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