redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

drm: omapdrm: dss: Pass DSS private structure to runtime PM functions 

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_device structure in the
callers, we add a new dss_get_device() function to retrieve it. 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@ideasonboard.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
hifive-unleashed-5.1
Laurent Pinchart 2018-02-13 14:00:21 +02:00 committed by Tomi Valkeinen
parent 0e546dfd3f
commit 7b295257a1
8 changed files with 61 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/gpu/drm/omapdrm/dss/dsi.c
View File

@ -5322,7 +5322,8 @@ 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;
@ -5341,6 +5342,7 @@ 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)
@ -5417,6 +5419,7 @@ 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;
@ -5525,7 +5528,7 @@ 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);

47
drivers/gpu/drm/omapdrm/dss/dss.c
View File

@ -345,7 +345,7 @@ 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");
@ -357,7 +357,7 @@ static void dss_dump_clocks(struct seq_file *s)
fclk_name,
fclk_rate);
dss_runtime_put();
dss_runtime_put(&dss);
}
#endif
@ -365,7 +365,7 @@ static void dss_dump_regs(struct seq_file *s)
{
#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dss_read_reg(r))
if (dss_runtime_get())
if (dss_runtime_get(&dss))
return;
DUMPREG(DSS_REVISION);
@ -379,7 +379,7 @@ static void dss_dump_regs(struct seq_file *s)
DUMPREG(DSS_SDI_STATUS);
}
dss_runtime_put();
dss_runtime_put(&dss);
#undef DUMPREG
}
@ -837,27 +837,32 @@ 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 void dss_debug_dump_clocks(struct seq_file *s)
@ -1223,13 +1228,15 @@ 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);
@ -1311,16 +1318,16 @@ static int dss_add_child_component(struct device *dev, void *data)
return 0;
}
static int dss_probe_hardware(void)
static int dss_probe_hardware(struct dss_device *dss)
{
u32 rev;
int r;
r = dss_runtime_get();
r = dss_runtime_get(dss);
if (r)
return r;
dss.dss_clk_rate = clk_get_rate(dss.dss_clk);
dss->dss_clk_rate = clk_get_rate(dss->dss_clk);
/* Select DPLL */
REG_FLD_MOD(DSS_CONTROL, 0, 0, 0);
@ -1332,16 +1339,16 @@ static int dss_probe_hardware(void)
REG_FLD_MOD(DSS_CONTROL, 1, 3, 3); /* venc clock 4x enable */
REG_FLD_MOD(DSS_CONTROL, 0, 2, 2); /* venc clock mode = normal */
#endif
dss.dsi_clk_source[0] = DSS_CLK_SRC_FCK;
dss.dsi_clk_source[1] = DSS_CLK_SRC_FCK;
dss.dispc_clk_source = DSS_CLK_SRC_FCK;
dss.lcd_clk_source[0] = DSS_CLK_SRC_FCK;
dss.lcd_clk_source[1] = DSS_CLK_SRC_FCK;
dss->dsi_clk_source[0] = DSS_CLK_SRC_FCK;
dss->dsi_clk_source[1] = DSS_CLK_SRC_FCK;
dss->dispc_clk_source = DSS_CLK_SRC_FCK;
dss->lcd_clk_source[0] = DSS_CLK_SRC_FCK;
dss->lcd_clk_source[1] = DSS_CLK_SRC_FCK;
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);
return 0;
}
@ -1397,7 +1404,7 @@ static int dss_probe(struct platform_device *pdev)
/* Enable runtime PM and probe the hardware. */
pm_runtime_enable(&pdev->dev);
r = dss_probe_hardware();
r = dss_probe_hardware(&dss);
if (r)
goto err_pm_runtime_disable;

12
drivers/gpu/drm/omapdrm/dss/dss.h
View File

@ -191,6 +191,7 @@ 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;
@ -291,8 +292,10 @@ static inline int dss_debugfs_create_file(const char *name,
}
#endif /* CONFIG_OMAP2_DSS_DEBUGFS */
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);
@ -302,8 +305,9 @@ void dss_select_hdmi_venc_clk_source(enum dss_hdmi_venc_clk_source_select);
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);

6
drivers/gpu/drm/omapdrm/dss/hdmi.h
View File

@ -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 */

3
drivers/gpu/drm/omapdrm/dss/hdmi4.c
View File

@ -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;

3
drivers/gpu/drm/omapdrm/dss/hdmi5.c
View File

@ -718,6 +718,7 @@ 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;
@ -735,7 +736,7 @@ 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;

10
drivers/gpu/drm/omapdrm/dss/hdmi_pll.c
View File

@ -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;

12
drivers/gpu/drm/omapdrm/dss/video-pll.c
View File

@ -64,7 +64,7 @@ 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;
@ -83,7 +83,7 @@ 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;
}
@ -98,7 +98,7 @@ 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 = {
@ -136,8 +136,9 @@ 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" };
@ -189,6 +190,7 @@ 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)