| Message ID | 20231224-n-s5p-mfc-const-v1-15-a3b246470fe4@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | media: s5p-mfc: cleanups | expand |
> -----Original Message----- > From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> > Sent: 24 December 2023 21:14 > To: Marek Szyprowski <m.szyprowski@samsung.com>; Andrzej Hajda > <andrzej.hajda@intel.com>; Mauro Carvalho Chehab > <mchehab@kernel.org> > Cc: Aakarsh Jain <aakarsh.jain@samsung.com>; linux-fsd@tesla.coma; linux- > samsung-soc@vger.kernel.org; Smitha T Murthy > <smithatmurthy@gmail.com>; linux-arm-kernel@lists.infradead.org; linux- > media@vger.kernel.org; linux-kernel@vger.kernel.org; Krzysztof Kozlowski > <krzysztof.kozlowski@linaro.org> > Subject: [PATCH 15/15] media: s5p-mfc: drop static device variable in > s5p_mfc_pm.c > > Change the interface of power management functions in s5p_mfc_pm.c to > accept the pointer to S5P MFC device structure. instead of relying on file- > scope static variable. This makes code easier to read and modify in case > more devices are added. > > Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> > --- > drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c | 42 +++++++++++--- > -------- > .../media/platform/samsung/s5p-mfc/s5p_mfc_ctrl.c | 26 +++++++------- > .../media/platform/samsung/s5p-mfc/s5p_mfc_dec.c | 8 ++--- > .../platform/samsung/s5p-mfc/s5p_mfc_opr_v5.c | 4 +-- > .../platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c | 8 ++--- > .../media/platform/samsung/s5p-mfc/s5p_mfc_pm.c | 40 ++++++++++---- > ------- > .../media/platform/samsung/s5p-mfc/s5p_mfc_pm.h | 8 ++--- > 7 files changed, 67 insertions(+), 69 deletions(-) > > diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c > b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c > index 5d10c1cb8b92..f0bda2f7f1c2 100644 > --- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c > +++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c > @@ -183,7 +183,7 @@ static void s5p_mfc_watchdog_worker(struct > work_struct *work) > mfc_err("Error: some instance may be closing/opening\n"); > spin_lock_irqsave(&dev->irqlock, flags); > > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > > for (i = 0; i < MFC_NUM_CONTEXTS; i++) { > ctx = dev->ctx[i]; > @@ -211,9 +211,9 @@ static void s5p_mfc_watchdog_worker(struct > work_struct *work) > mfc_err("Failed to reload FW\n"); > goto unlock; > } > - s5p_mfc_clock_on(); > + s5p_mfc_clock_on(dev); > ret = s5p_mfc_init_hw(dev); > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > if (ret) > mfc_err("Failed to reinit FW\n"); > } > @@ -393,7 +393,7 @@ static void s5p_mfc_handle_frame(struct > s5p_mfc_ctx *ctx, > s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev); > wake_up_ctx(ctx, reason, err); > WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0); > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > s5p_mfc_hw_call(dev->mfc_ops, try_run, dev); > return; > } > @@ -465,7 +465,7 @@ static void s5p_mfc_handle_frame(struct > s5p_mfc_ctx *ctx, > s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev); > wake_up_ctx(ctx, reason, err); > WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0); > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > /* if suspending, wake up device and do not try_run again*/ > if (test_bit(0, &dev->enter_suspend)) > wake_up_dev(dev, reason, err); > @@ -509,7 +509,7 @@ static void s5p_mfc_handle_error(struct > s5p_mfc_dev *dev, > } > WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0); > s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev); > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > wake_up_dev(dev, reason, err); > } > > @@ -565,7 +565,7 @@ static void s5p_mfc_handle_seq_done(struct > s5p_mfc_ctx *ctx, > s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev); > clear_work_bit(ctx); > WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0); > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > s5p_mfc_hw_call(dev->mfc_ops, try_run, dev); > wake_up_ctx(ctx, reason, err); > } > @@ -601,14 +601,14 @@ static void s5p_mfc_handle_init_buffers(struct > s5p_mfc_ctx *ctx, > } > WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0); > > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > > wake_up(&ctx->queue); > s5p_mfc_hw_call(dev->mfc_ops, try_run, dev); > } else { > WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0); > > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > > wake_up(&ctx->queue); > } > @@ -636,7 +636,7 @@ static void s5p_mfc_handle_stream_complete(struct > s5p_mfc_ctx *ctx) > > WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0); > > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > wake_up(&ctx->queue); > s5p_mfc_hw_call(dev->mfc_ops, try_run, dev); } @@ -688,7 +688,7 > @@ static irqreturn_t s5p_mfc_irq(int irq, void *priv) > } > s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, > dev); > WARN_ON(test_and_clear_bit(0, &dev->hw_lock) > == 0); > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > wake_up_ctx(ctx, reason, err); > s5p_mfc_hw_call(dev->mfc_ops, try_run, dev); > } else { > @@ -752,7 +752,7 @@ static irqreturn_t s5p_mfc_irq(int irq, void *priv) > if (test_and_clear_bit(0, &dev->hw_lock) == 0) > mfc_err("Failed to unlock hw\n"); > > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > clear_work_bit(ctx); > wake_up(&ctx->queue); > > @@ -837,20 +837,20 @@ static int s5p_mfc_open(struct file *file) > dev->watchdog_timer.expires = jiffies + > > msecs_to_jiffies(MFC_WATCHDOG_INTERVAL); > add_timer(&dev->watchdog_timer); > - ret = s5p_mfc_power_on(); > + ret = s5p_mfc_power_on(dev); > if (ret < 0) { > mfc_err("power on failed\n"); > goto err_pwr_enable; > } > - s5p_mfc_clock_on(); > + s5p_mfc_clock_on(dev); > ret = s5p_mfc_load_firmware(dev); > if (ret) { > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > goto err_load_fw; > } > /* Init the FW */ > ret = s5p_mfc_init_hw(dev); > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > if (ret) > goto err_init_hw; > } > @@ -927,7 +927,7 @@ static int s5p_mfc_open(struct file *file) > err_load_fw: > err_pwr_enable: > if (dev->num_inst == 1) { > - if (s5p_mfc_power_off() < 0) > + if (s5p_mfc_power_off(dev) < 0) > mfc_err("power off failed\n"); > del_timer_sync(&dev->watchdog_timer); > } > @@ -959,7 +959,7 @@ static int s5p_mfc_release(struct file *file) > vb2_queue_release(&ctx->vq_src); > vb2_queue_release(&ctx->vq_dst); > if (dev) { > - s5p_mfc_clock_on(); > + s5p_mfc_clock_on(dev); > > /* Mark context as idle */ > clear_work_bit_irqsave(ctx); > @@ -979,12 +979,12 @@ static int s5p_mfc_release(struct file *file) > mfc_debug(2, "Last instance\n"); > s5p_mfc_deinit_hw(dev); > del_timer_sync(&dev->watchdog_timer); > - s5p_mfc_clock_off(); > - if (s5p_mfc_power_off() < 0) > + s5p_mfc_clock_off(dev); > + if (s5p_mfc_power_off(dev) < 0) > mfc_err("Power off failed\n"); > } else { > mfc_debug(2, "Shutting down clock\n"); > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > } > } > if (dev) > diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_ctrl.c > b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_ctrl.c > index 6d3c92045c05..8eedf6524c39 100644 > --- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_ctrl.c > +++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_ctrl.c > @@ -215,7 +215,7 @@ int s5p_mfc_init_hw(struct s5p_mfc_dev *dev) > > /* 0. MFC reset */ > mfc_debug(2, "MFC reset..\n"); > - s5p_mfc_clock_on(); > + s5p_mfc_clock_on(dev); > dev->risc_on = 0; > ret = s5p_mfc_reset(dev); > if (ret) { > @@ -243,7 +243,7 @@ int s5p_mfc_init_hw(struct s5p_mfc_dev *dev) > if (s5p_mfc_wait_for_done_dev(dev, > S5P_MFC_R2H_CMD_FW_STATUS_RET)) { > mfc_err("Failed to load firmware\n"); > s5p_mfc_reset(dev); > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > return -EIO; > } > s5p_mfc_clean_dev_int_flags(dev); > @@ -252,14 +252,14 @@ int s5p_mfc_init_hw(struct s5p_mfc_dev *dev) > if (ret) { > mfc_err("Failed to send command to MFC - timeout\n"); > s5p_mfc_reset(dev); > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > return ret; > } > mfc_debug(2, "Ok, now will wait for completion of hardware init\n"); > if (s5p_mfc_wait_for_done_dev(dev, > S5P_MFC_R2H_CMD_SYS_INIT_RET)) { > mfc_err("Failed to init hardware\n"); > s5p_mfc_reset(dev); > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > return -EIO; > } > dev->int_cond = 0; > @@ -269,7 +269,7 @@ int s5p_mfc_init_hw(struct s5p_mfc_dev *dev) > mfc_err("Failed to init firmware - error: %d int: %d\n", > dev->int_err, dev->int_type); > s5p_mfc_reset(dev); > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > return -EIO; > } > if (IS_MFCV6_PLUS(dev)) > @@ -279,7 +279,7 @@ int s5p_mfc_init_hw(struct s5p_mfc_dev *dev) > > mfc_debug(2, "MFC F/W version : %02xyy, %02xmm, %02xdd\n", > (ver >> 16) & 0xFF, (ver >> 8) & 0xFF, ver & 0xFF); > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > mfc_debug_leave(); > return 0; > } > @@ -288,12 +288,12 @@ int s5p_mfc_init_hw(struct s5p_mfc_dev *dev) > /* Deinitialize hardware */ > void s5p_mfc_deinit_hw(struct s5p_mfc_dev *dev) { > - s5p_mfc_clock_on(); > + s5p_mfc_clock_on(dev); > > s5p_mfc_reset(dev); > s5p_mfc_hw_call(dev->mfc_ops, release_dev_context_buffer, > dev); > > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > } > > int s5p_mfc_sleep(struct s5p_mfc_dev *dev) @@ -301,7 +301,7 @@ int > s5p_mfc_sleep(struct s5p_mfc_dev *dev) > int ret; > > mfc_debug_enter(); > - s5p_mfc_clock_on(); > + s5p_mfc_clock_on(dev); > s5p_mfc_clean_dev_int_flags(dev); > ret = s5p_mfc_hw_call(dev->mfc_cmds, sleep_cmd, dev); > if (ret) { > @@ -312,7 +312,7 @@ int s5p_mfc_sleep(struct s5p_mfc_dev *dev) > mfc_err("Failed to sleep\n"); > return -EIO; > } > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > dev->int_cond = 0; > if (dev->int_err != 0 || dev->int_type != > > S5P_MFC_R2H_CMD_SLEEP_RET) { > @@ -384,12 +384,12 @@ int s5p_mfc_wakeup(struct s5p_mfc_dev *dev) > mfc_debug_enter(); > /* 0. MFC reset */ > mfc_debug(2, "MFC reset..\n"); > - s5p_mfc_clock_on(); > + s5p_mfc_clock_on(dev); > dev->risc_on = 0; > ret = s5p_mfc_reset(dev); > if (ret) { > mfc_err("Failed to reset MFC - timeout\n"); > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > return ret; > } > mfc_debug(2, "Done MFC reset..\n"); > @@ -404,7 +404,7 @@ int s5p_mfc_wakeup(struct s5p_mfc_dev *dev) > else > ret = s5p_mfc_wait_wakeup(dev); > > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > if (ret) > return ret; > > diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c > b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c > index eef26d4e02cf..b620db8896e1 100644 > --- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c > +++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c > @@ -477,7 +477,7 @@ static int reqbufs_output(struct s5p_mfc_dev *dev, > struct s5p_mfc_ctx *ctx, { > int ret = 0; > > - s5p_mfc_clock_on(); > + s5p_mfc_clock_on(dev); > > if (reqbufs->count == 0) { > mfc_debug(2, "Freeing buffers\n"); > @@ -514,7 +514,7 @@ static int reqbufs_output(struct s5p_mfc_dev *dev, > struct s5p_mfc_ctx *ctx, > ret = -EINVAL; > } > out: > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > if (ret) > mfc_err("Failed allocating buffers for OUTPUT queue\n"); > return ret; > @@ -525,7 +525,7 @@ static int reqbufs_capture(struct s5p_mfc_dev *dev, > struct s5p_mfc_ctx *ctx, { > int ret = 0; > > - s5p_mfc_clock_on(); > + s5p_mfc_clock_on(dev); > > if (reqbufs->count == 0) { > mfc_debug(2, "Freeing buffers\n"); > @@ -568,7 +568,7 @@ static int reqbufs_capture(struct s5p_mfc_dev *dev, > struct s5p_mfc_ctx *ctx, > ret = -EINVAL; > } > out: > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > if (ret) > mfc_err("Failed allocating buffers for CAPTURE queue\n"); > return ret; > diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v5.c > b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v5.c > index ba22c6a3219a..87492db83536 100644 > --- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v5.c > +++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v5.c > @@ -1346,7 +1346,7 @@ static void s5p_mfc_try_run_v5(struct > s5p_mfc_dev *dev) > * Last frame has already been sent to MFC. > * Now obtaining frames from MFC buffer > */ > - s5p_mfc_clock_on(); > + s5p_mfc_clock_on(dev); > s5p_mfc_clean_ctx_int_flags(ctx); > > if (ctx->type == MFCINST_DECODER) { > @@ -1422,7 +1422,7 @@ static void s5p_mfc_try_run_v5(struct > s5p_mfc_dev *dev) > * scheduled, reduce the clock count as no one will > * ever do this, because no interrupt related to this try_run > * will ever come from hardware. */ > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > } > } > > diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c > b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c > index 08545213caa9..8908c159a91e 100644 > --- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c > +++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c > @@ -1992,7 +1992,7 @@ static void s5p_mfc_try_run_v6(struct > s5p_mfc_dev *dev) > /* Last frame has already been sent to MFC > * Now obtaining frames from MFC buffer */ > > - s5p_mfc_clock_on(); > + s5p_mfc_clock_on(dev); > s5p_mfc_clean_ctx_int_flags(ctx); > > if (ctx->type == MFCINST_DECODER) { > @@ -2072,7 +2072,7 @@ static void s5p_mfc_try_run_v6(struct > s5p_mfc_dev *dev) > * scheduled, reduce the clock count as no one will > * ever do this, because no interrupt related to this try_run > * will ever come from hardware. */ > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(dev); > } > } > > @@ -2088,9 +2088,9 @@ s5p_mfc_read_info_v6(struct s5p_mfc_ctx *ctx, > unsigned long ofs) { > int ret; > > - s5p_mfc_clock_on(); > + s5p_mfc_clock_on(ctx->dev); > ret = readl((void __iomem *)ofs); > - s5p_mfc_clock_off(); > + s5p_mfc_clock_off(ctx->dev); > > return ret; > } > diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.c > b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.c > index ecb3065c33c9..ae4241408383 100644 > --- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.c > +++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.c > @@ -14,13 +14,11 @@ > #include "s5p_mfc_debug.h" > #include "s5p_mfc_pm.h" > > -static struct s5p_mfc_pm *pm; > - > int s5p_mfc_init_pm(struct s5p_mfc_dev *dev) { > + struct s5p_mfc_pm *pm = &dev->pm; > int i; > > - pm = &dev->pm; > pm->num_clocks = dev->variant->num_clocks; > pm->clk_names = dev->variant->clk_names; > pm->device = &dev->plat_dev->dev; > @@ -50,58 +48,58 @@ int s5p_mfc_init_pm(struct s5p_mfc_dev *dev) > > void s5p_mfc_final_pm(struct s5p_mfc_dev *dev) { > - pm_runtime_disable(pm->device); > + pm_runtime_disable(dev->pm.device); > } > > -int s5p_mfc_clock_on(void) > +int s5p_mfc_clock_on(struct s5p_mfc_dev *dev) > { > - return clk_enable(pm->clock_gate); > + return clk_enable(dev->pm.clock_gate); > } > > -void s5p_mfc_clock_off(void) > +void s5p_mfc_clock_off(struct s5p_mfc_dev *dev) > { > - clk_disable(pm->clock_gate); > + clk_disable(dev->pm.clock_gate); > } > > -int s5p_mfc_power_on(void) > +int s5p_mfc_power_on(struct s5p_mfc_dev *dev) > { > int i, ret = 0; > > - ret = pm_runtime_resume_and_get(pm->device); > + ret = pm_runtime_resume_and_get(dev->pm.device); > if (ret < 0) > return ret; > > /* clock control */ > - for (i = 0; i < pm->num_clocks; i++) { > - ret = clk_prepare_enable(pm->clocks[i]); > + for (i = 0; i < dev->pm.num_clocks; i++) { > + ret = clk_prepare_enable(dev->pm.clocks[i]); > if (ret < 0) { > mfc_err("clock prepare failed for clock: %s\n", > - pm->clk_names[i]); > + dev->pm.clk_names[i]); > goto err; > } > } > > /* prepare for software clock gating */ > - clk_disable(pm->clock_gate); > + clk_disable(dev->pm.clock_gate); > > return 0; > err: > while (--i >= 0) > - clk_disable_unprepare(pm->clocks[i]); > - pm_runtime_put(pm->device); > + clk_disable_unprepare(dev->pm.clocks[i]); > + pm_runtime_put(dev->pm.device); > return ret; > } > > -int s5p_mfc_power_off(void) > +int s5p_mfc_power_off(struct s5p_mfc_dev *dev) > { > int i; > > /* finish software clock gating */ > - clk_enable(pm->clock_gate); > + clk_enable(dev->pm.clock_gate); > > - for (i = 0; i < pm->num_clocks; i++) > - clk_disable_unprepare(pm->clocks[i]); > + for (i = 0; i < dev->pm.num_clocks; i++) > + clk_disable_unprepare(dev->pm.clocks[i]); > > - return pm_runtime_put_sync(pm->device); > + return pm_runtime_put_sync(dev->pm.device); > } > > diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.h > b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.h > index 4159d2364e87..9c71036f0385 100644 > --- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.h > +++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.h > @@ -12,9 +12,9 @@ > int s5p_mfc_init_pm(struct s5p_mfc_dev *dev); void > s5p_mfc_final_pm(struct s5p_mfc_dev *dev); > > -int s5p_mfc_clock_on(void); > -void s5p_mfc_clock_off(void); > -int s5p_mfc_power_on(void); > -int s5p_mfc_power_off(void); > +int s5p_mfc_clock_on(struct s5p_mfc_dev *dev); void > +s5p_mfc_clock_off(struct s5p_mfc_dev *dev); int > s5p_mfc_power_on(struct > +s5p_mfc_dev *dev); int s5p_mfc_power_off(struct s5p_mfc_dev *dev); > > #endif /* S5P_MFC_PM_H_ */ > > -- > 2.34.1 Reviewed-by: Aakarsh Jain <aakarsh.jain@samsung.com> Thanks!
On 26/12/2023 07:21, Aakarsh Jain wrote: >> -int s5p_mfc_clock_on(void); >> -void s5p_mfc_clock_off(void); >> -int s5p_mfc_power_on(void); >> -int s5p_mfc_power_off(void); >> +int s5p_mfc_clock_on(struct s5p_mfc_dev *dev); void >> +s5p_mfc_clock_off(struct s5p_mfc_dev *dev); int >> s5p_mfc_power_on(struct >> +s5p_mfc_dev *dev); int s5p_mfc_power_off(struct s5p_mfc_dev *dev); >> >> #endif /* S5P_MFC_PM_H_ */ >> >> -- >> 2.34.1 > > Reviewed-by: Aakarsh Jain <aakarsh.jain@samsung.com> Pleasy kindly trim the replies from unnecessary context. It makes it much easier to find new content. Best regards, Krzysztof
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c index 5d10c1cb8b92..f0bda2f7f1c2 100644 --- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c +++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c @@ -183,7 +183,7 @@ static void s5p_mfc_watchdog_worker(struct work_struct *work) mfc_err("Error: some instance may be closing/opening\n"); spin_lock_irqsave(&dev->irqlock, flags); - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); for (i = 0; i < MFC_NUM_CONTEXTS; i++) { ctx = dev->ctx[i]; @@ -211,9 +211,9 @@ static void s5p_mfc_watchdog_worker(struct work_struct *work) mfc_err("Failed to reload FW\n"); goto unlock; } - s5p_mfc_clock_on(); + s5p_mfc_clock_on(dev); ret = s5p_mfc_init_hw(dev); - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); if (ret) mfc_err("Failed to reinit FW\n"); } @@ -393,7 +393,7 @@ static void s5p_mfc_handle_frame(struct s5p_mfc_ctx *ctx, s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev); wake_up_ctx(ctx, reason, err); WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0); - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); s5p_mfc_hw_call(dev->mfc_ops, try_run, dev); return; } @@ -465,7 +465,7 @@ static void s5p_mfc_handle_frame(struct s5p_mfc_ctx *ctx, s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev); wake_up_ctx(ctx, reason, err); WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0); - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); /* if suspending, wake up device and do not try_run again*/ if (test_bit(0, &dev->enter_suspend)) wake_up_dev(dev, reason, err); @@ -509,7 +509,7 @@ static void s5p_mfc_handle_error(struct s5p_mfc_dev *dev, } WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0); s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev); - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); wake_up_dev(dev, reason, err); } @@ -565,7 +565,7 @@ static void s5p_mfc_handle_seq_done(struct s5p_mfc_ctx *ctx, s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev); clear_work_bit(ctx); WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0); - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); s5p_mfc_hw_call(dev->mfc_ops, try_run, dev); wake_up_ctx(ctx, reason, err); } @@ -601,14 +601,14 @@ static void s5p_mfc_handle_init_buffers(struct s5p_mfc_ctx *ctx, } WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0); - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); wake_up(&ctx->queue); s5p_mfc_hw_call(dev->mfc_ops, try_run, dev); } else { WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0); - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); wake_up(&ctx->queue); } @@ -636,7 +636,7 @@ static void s5p_mfc_handle_stream_complete(struct s5p_mfc_ctx *ctx) WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0); - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); wake_up(&ctx->queue); s5p_mfc_hw_call(dev->mfc_ops, try_run, dev); } @@ -688,7 +688,7 @@ static irqreturn_t s5p_mfc_irq(int irq, void *priv) } s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev); WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0); - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); wake_up_ctx(ctx, reason, err); s5p_mfc_hw_call(dev->mfc_ops, try_run, dev); } else { @@ -752,7 +752,7 @@ static irqreturn_t s5p_mfc_irq(int irq, void *priv) if (test_and_clear_bit(0, &dev->hw_lock) == 0) mfc_err("Failed to unlock hw\n"); - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); clear_work_bit(ctx); wake_up(&ctx->queue); @@ -837,20 +837,20 @@ static int s5p_mfc_open(struct file *file) dev->watchdog_timer.expires = jiffies + msecs_to_jiffies(MFC_WATCHDOG_INTERVAL); add_timer(&dev->watchdog_timer); - ret = s5p_mfc_power_on(); + ret = s5p_mfc_power_on(dev); if (ret < 0) { mfc_err("power on failed\n"); goto err_pwr_enable; } - s5p_mfc_clock_on(); + s5p_mfc_clock_on(dev); ret = s5p_mfc_load_firmware(dev); if (ret) { - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); goto err_load_fw; } /* Init the FW */ ret = s5p_mfc_init_hw(dev); - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); if (ret) goto err_init_hw; } @@ -927,7 +927,7 @@ static int s5p_mfc_open(struct file *file) err_load_fw: err_pwr_enable: if (dev->num_inst == 1) { - if (s5p_mfc_power_off() < 0) + if (s5p_mfc_power_off(dev) < 0) mfc_err("power off failed\n"); del_timer_sync(&dev->watchdog_timer); } @@ -959,7 +959,7 @@ static int s5p_mfc_release(struct file *file) vb2_queue_release(&ctx->vq_src); vb2_queue_release(&ctx->vq_dst); if (dev) { - s5p_mfc_clock_on(); + s5p_mfc_clock_on(dev); /* Mark context as idle */ clear_work_bit_irqsave(ctx); @@ -979,12 +979,12 @@ static int s5p_mfc_release(struct file *file) mfc_debug(2, "Last instance\n"); s5p_mfc_deinit_hw(dev); del_timer_sync(&dev->watchdog_timer); - s5p_mfc_clock_off(); - if (s5p_mfc_power_off() < 0) + s5p_mfc_clock_off(dev); + if (s5p_mfc_power_off(dev) < 0) mfc_err("Power off failed\n"); } else { mfc_debug(2, "Shutting down clock\n"); - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); } } if (dev) diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_ctrl.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_ctrl.c index 6d3c92045c05..8eedf6524c39 100644 --- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_ctrl.c +++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_ctrl.c @@ -215,7 +215,7 @@ int s5p_mfc_init_hw(struct s5p_mfc_dev *dev) /* 0. MFC reset */ mfc_debug(2, "MFC reset..\n"); - s5p_mfc_clock_on(); + s5p_mfc_clock_on(dev); dev->risc_on = 0; ret = s5p_mfc_reset(dev); if (ret) { @@ -243,7 +243,7 @@ int s5p_mfc_init_hw(struct s5p_mfc_dev *dev) if (s5p_mfc_wait_for_done_dev(dev, S5P_MFC_R2H_CMD_FW_STATUS_RET)) { mfc_err("Failed to load firmware\n"); s5p_mfc_reset(dev); - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); return -EIO; } s5p_mfc_clean_dev_int_flags(dev); @@ -252,14 +252,14 @@ int s5p_mfc_init_hw(struct s5p_mfc_dev *dev) if (ret) { mfc_err("Failed to send command to MFC - timeout\n"); s5p_mfc_reset(dev); - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); return ret; } mfc_debug(2, "Ok, now will wait for completion of hardware init\n"); if (s5p_mfc_wait_for_done_dev(dev, S5P_MFC_R2H_CMD_SYS_INIT_RET)) { mfc_err("Failed to init hardware\n"); s5p_mfc_reset(dev); - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); return -EIO; } dev->int_cond = 0; @@ -269,7 +269,7 @@ int s5p_mfc_init_hw(struct s5p_mfc_dev *dev) mfc_err("Failed to init firmware - error: %d int: %d\n", dev->int_err, dev->int_type); s5p_mfc_reset(dev); - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); return -EIO; } if (IS_MFCV6_PLUS(dev)) @@ -279,7 +279,7 @@ int s5p_mfc_init_hw(struct s5p_mfc_dev *dev) mfc_debug(2, "MFC F/W version : %02xyy, %02xmm, %02xdd\n", (ver >> 16) & 0xFF, (ver >> 8) & 0xFF, ver & 0xFF); - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); mfc_debug_leave(); return 0; } @@ -288,12 +288,12 @@ int s5p_mfc_init_hw(struct s5p_mfc_dev *dev) /* Deinitialize hardware */ void s5p_mfc_deinit_hw(struct s5p_mfc_dev *dev) { - s5p_mfc_clock_on(); + s5p_mfc_clock_on(dev); s5p_mfc_reset(dev); s5p_mfc_hw_call(dev->mfc_ops, release_dev_context_buffer, dev); - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); } int s5p_mfc_sleep(struct s5p_mfc_dev *dev) @@ -301,7 +301,7 @@ int s5p_mfc_sleep(struct s5p_mfc_dev *dev) int ret; mfc_debug_enter(); - s5p_mfc_clock_on(); + s5p_mfc_clock_on(dev); s5p_mfc_clean_dev_int_flags(dev); ret = s5p_mfc_hw_call(dev->mfc_cmds, sleep_cmd, dev); if (ret) { @@ -312,7 +312,7 @@ int s5p_mfc_sleep(struct s5p_mfc_dev *dev) mfc_err("Failed to sleep\n"); return -EIO; } - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); dev->int_cond = 0; if (dev->int_err != 0 || dev->int_type != S5P_MFC_R2H_CMD_SLEEP_RET) { @@ -384,12 +384,12 @@ int s5p_mfc_wakeup(struct s5p_mfc_dev *dev) mfc_debug_enter(); /* 0. MFC reset */ mfc_debug(2, "MFC reset..\n"); - s5p_mfc_clock_on(); + s5p_mfc_clock_on(dev); dev->risc_on = 0; ret = s5p_mfc_reset(dev); if (ret) { mfc_err("Failed to reset MFC - timeout\n"); - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); return ret; } mfc_debug(2, "Done MFC reset..\n"); @@ -404,7 +404,7 @@ int s5p_mfc_wakeup(struct s5p_mfc_dev *dev) else ret = s5p_mfc_wait_wakeup(dev); - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); if (ret) return ret; diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c index eef26d4e02cf..b620db8896e1 100644 --- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c +++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c @@ -477,7 +477,7 @@ static int reqbufs_output(struct s5p_mfc_dev *dev, struct s5p_mfc_ctx *ctx, { int ret = 0; - s5p_mfc_clock_on(); + s5p_mfc_clock_on(dev); if (reqbufs->count == 0) { mfc_debug(2, "Freeing buffers\n"); @@ -514,7 +514,7 @@ static int reqbufs_output(struct s5p_mfc_dev *dev, struct s5p_mfc_ctx *ctx, ret = -EINVAL; } out: - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); if (ret) mfc_err("Failed allocating buffers for OUTPUT queue\n"); return ret; @@ -525,7 +525,7 @@ static int reqbufs_capture(struct s5p_mfc_dev *dev, struct s5p_mfc_ctx *ctx, { int ret = 0; - s5p_mfc_clock_on(); + s5p_mfc_clock_on(dev); if (reqbufs->count == 0) { mfc_debug(2, "Freeing buffers\n"); @@ -568,7 +568,7 @@ static int reqbufs_capture(struct s5p_mfc_dev *dev, struct s5p_mfc_ctx *ctx, ret = -EINVAL; } out: - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); if (ret) mfc_err("Failed allocating buffers for CAPTURE queue\n"); return ret; diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v5.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v5.c index ba22c6a3219a..87492db83536 100644 --- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v5.c +++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v5.c @@ -1346,7 +1346,7 @@ static void s5p_mfc_try_run_v5(struct s5p_mfc_dev *dev) * Last frame has already been sent to MFC. * Now obtaining frames from MFC buffer */ - s5p_mfc_clock_on(); + s5p_mfc_clock_on(dev); s5p_mfc_clean_ctx_int_flags(ctx); if (ctx->type == MFCINST_DECODER) { @@ -1422,7 +1422,7 @@ static void s5p_mfc_try_run_v5(struct s5p_mfc_dev *dev) * scheduled, reduce the clock count as no one will * ever do this, because no interrupt related to this try_run * will ever come from hardware. */ - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); } } diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c index 08545213caa9..8908c159a91e 100644 --- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c +++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c @@ -1992,7 +1992,7 @@ static void s5p_mfc_try_run_v6(struct s5p_mfc_dev *dev) /* Last frame has already been sent to MFC * Now obtaining frames from MFC buffer */ - s5p_mfc_clock_on(); + s5p_mfc_clock_on(dev); s5p_mfc_clean_ctx_int_flags(ctx); if (ctx->type == MFCINST_DECODER) { @@ -2072,7 +2072,7 @@ static void s5p_mfc_try_run_v6(struct s5p_mfc_dev *dev) * scheduled, reduce the clock count as no one will * ever do this, because no interrupt related to this try_run * will ever come from hardware. */ - s5p_mfc_clock_off(); + s5p_mfc_clock_off(dev); } } @@ -2088,9 +2088,9 @@ s5p_mfc_read_info_v6(struct s5p_mfc_ctx *ctx, unsigned long ofs) { int ret; - s5p_mfc_clock_on(); + s5p_mfc_clock_on(ctx->dev); ret = readl((void __iomem *)ofs); - s5p_mfc_clock_off(); + s5p_mfc_clock_off(ctx->dev); return ret; } diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.c index ecb3065c33c9..ae4241408383 100644 --- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.c +++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.c @@ -14,13 +14,11 @@ #include "s5p_mfc_debug.h" #include "s5p_mfc_pm.h" -static struct s5p_mfc_pm *pm; - int s5p_mfc_init_pm(struct s5p_mfc_dev *dev) { + struct s5p_mfc_pm *pm = &dev->pm; int i; - pm = &dev->pm; pm->num_clocks = dev->variant->num_clocks; pm->clk_names = dev->variant->clk_names; pm->device = &dev->plat_dev->dev; @@ -50,58 +48,58 @@ int s5p_mfc_init_pm(struct s5p_mfc_dev *dev) void s5p_mfc_final_pm(struct s5p_mfc_dev *dev) { - pm_runtime_disable(pm->device); + pm_runtime_disable(dev->pm.device); } -int s5p_mfc_clock_on(void) +int s5p_mfc_clock_on(struct s5p_mfc_dev *dev) { - return clk_enable(pm->clock_gate); + return clk_enable(dev->pm.clock_gate); } -void s5p_mfc_clock_off(void) +void s5p_mfc_clock_off(struct s5p_mfc_dev *dev) { - clk_disable(pm->clock_gate); + clk_disable(dev->pm.clock_gate); } -int s5p_mfc_power_on(void) +int s5p_mfc_power_on(struct s5p_mfc_dev *dev) { int i, ret = 0; - ret = pm_runtime_resume_and_get(pm->device); + ret = pm_runtime_resume_and_get(dev->pm.device); if (ret < 0) return ret; /* clock control */ - for (i = 0; i < pm->num_clocks; i++) { - ret = clk_prepare_enable(pm->clocks[i]); + for (i = 0; i < dev->pm.num_clocks; i++) { + ret = clk_prepare_enable(dev->pm.clocks[i]); if (ret < 0) { mfc_err("clock prepare failed for clock: %s\n", - pm->clk_names[i]); + dev->pm.clk_names[i]); goto err; } } /* prepare for software clock gating */ - clk_disable(pm->clock_gate); + clk_disable(dev->pm.clock_gate); return 0; err: while (--i >= 0) - clk_disable_unprepare(pm->clocks[i]); - pm_runtime_put(pm->device); + clk_disable_unprepare(dev->pm.clocks[i]); + pm_runtime_put(dev->pm.device); return ret; } -int s5p_mfc_power_off(void) +int s5p_mfc_power_off(struct s5p_mfc_dev *dev) { int i; /* finish software clock gating */ - clk_enable(pm->clock_gate); + clk_enable(dev->pm.clock_gate); - for (i = 0; i < pm->num_clocks; i++) - clk_disable_unprepare(pm->clocks[i]); + for (i = 0; i < dev->pm.num_clocks; i++) + clk_disable_unprepare(dev->pm.clocks[i]); - return pm_runtime_put_sync(pm->device); + return pm_runtime_put_sync(dev->pm.device); } diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.h b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.h index 4159d2364e87..9c71036f0385 100644 --- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.h +++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.h @@ -12,9 +12,9 @@ int s5p_mfc_init_pm(struct s5p_mfc_dev *dev); void s5p_mfc_final_pm(struct s5p_mfc_dev *dev); -int s5p_mfc_clock_on(void); -void s5p_mfc_clock_off(void); -int s5p_mfc_power_on(void); -int s5p_mfc_power_off(void); +int s5p_mfc_clock_on(struct s5p_mfc_dev *dev); +void s5p_mfc_clock_off(struct s5p_mfc_dev *dev); +int s5p_mfc_power_on(struct s5p_mfc_dev *dev); +int s5p_mfc_power_off(struct s5p_mfc_dev *dev); #endif /* S5P_MFC_PM_H_ */
Change the interface of power management functions in s5p_mfc_pm.c to accept the pointer to S5P MFC device structure. instead of relying on file-scope static variable. This makes code easier to read and modify in case more devices are added. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> --- drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c | 42 +++++++++++----------- .../media/platform/samsung/s5p-mfc/s5p_mfc_ctrl.c | 26 +++++++------- .../media/platform/samsung/s5p-mfc/s5p_mfc_dec.c | 8 ++--- .../platform/samsung/s5p-mfc/s5p_mfc_opr_v5.c | 4 +-- .../platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c | 8 ++--- .../media/platform/samsung/s5p-mfc/s5p_mfc_pm.c | 40 ++++++++++----------- .../media/platform/samsung/s5p-mfc/s5p_mfc_pm.h | 8 ++--- 7 files changed, 67 insertions(+), 69 deletions(-)