Update the HPD interrupt mute/unmute routines to accept an irq_type bitmask parameter, allowing selective per-bit mask control instead of operating on all HPD interrupt bits unconditionally.
With IRQF_ONESHOT handling IRQ line masking during threaded handler execution, these helpers are no longer needed in the runtime IRQ path. They are retained for init-time use by analogix_dp_config_interrupt() to configure platform-specific HPD interrupt masks. Also extract the irq_type-to-COMMON_INT_STA_4 bit mapping into a shared helper to avoid duplication in the clear/mute/unmute paths, and drop the now unused COMMON_INT_4_HPD_IRQ macro. Signed-off-by: Damon Ding <[email protected]> --- Changes in v2: - Update commit messages to align with newly added IRQF_ONESHOT related commit. Changes in v3: - Extract the irq_type bit mapping into a shared helper and document the mask register polarity once. - Drop the unused COMMON_INT_4_HPD_IRQ macro. --- .../drm/bridge/analogix/analogix_dp_core.h | 4 +- .../gpu/drm/bridge/analogix/analogix_dp_reg.c | 80 ++++++++++++------- 2 files changed, 55 insertions(+), 29 deletions(-) diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h index 88fa538a5949..6a3566b2e8de 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h @@ -185,8 +185,8 @@ void analogix_dp_init_interrupt(struct analogix_dp_device *dp); void analogix_dp_reset(struct analogix_dp_device *dp); void analogix_dp_swreset(struct analogix_dp_device *dp); void analogix_dp_config_interrupt(struct analogix_dp_device *dp); -void analogix_dp_mute_hpd_interrupt(struct analogix_dp_device *dp); -void analogix_dp_unmute_hpd_interrupt(struct analogix_dp_device *dp); +void analogix_dp_mute_hpd_interrupt(struct analogix_dp_device *dp, u32 irq_type); +void analogix_dp_unmute_hpd_interrupt(struct analogix_dp_device *dp, u32 irq_type); int analogix_dp_wait_pll_locked(struct analogix_dp_device *dp); void analogix_dp_set_pll_power_down(struct analogix_dp_device *dp, bool enable); void analogix_dp_set_analog_power_down(struct analogix_dp_device *dp, diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c index 2c1d4655114b..6ac03a1aa512 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c @@ -26,8 +26,20 @@ #define HPD_IRQ_ALL (DP_IRQ_TYPE_HP_CABLE_IN | DP_IRQ_TYPE_HP_CABLE_OUT | \ DP_IRQ_TYPE_HP_CHANGE | DP_IRQ_TYPE_IRQ_HPD) -#define COMMON_INT_4_HPD_IRQ (DP_IRQ_TYPE_HP_CABLE_IN | DP_IRQ_TYPE_HP_CABLE_OUT | \ - DP_IRQ_TYPE_HP_CHANGE) + +static u32 analogix_dp_irq_type_to_common_int_sta4(u32 irq_type) +{ + u32 reg = 0; + + if (irq_type & DP_IRQ_TYPE_HP_CABLE_IN) + reg |= PLUG; + if (irq_type & DP_IRQ_TYPE_HP_CABLE_OUT) + reg |= HPD_LOST; + if (irq_type & DP_IRQ_TYPE_HP_CHANGE) + reg |= HOTPLUG_CHG; + + return reg; +} void analogix_dp_enable_video_mute(struct analogix_dp_device *dp, bool enable) { @@ -196,30 +208,50 @@ void analogix_dp_config_interrupt(struct analogix_dp_device *dp) writel(reg, dp->reg_base + ANALOGIX_DP_INT_STA_MASK); } -void analogix_dp_mute_hpd_interrupt(struct analogix_dp_device *dp) +/* + * Both ANALOGIX_DP_COMMON_INT_MASK_4 and ANALOGIX_DP_INT_STA_MASK use + * 0 to mask and 1 to unmask the corresponding interrupt sources. + */ +void analogix_dp_mute_hpd_interrupt(struct analogix_dp_device *dp, u32 irq_type) { - u32 reg; + u32 reg, mask; - /* 0: mask, 1: unmask */ - reg = readl(dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_4); - reg &= ~COMMON_INT_MASK_4; - writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_4); + if (!irq_type) + return; - reg = readl(dp->reg_base + ANALOGIX_DP_INT_STA_MASK); - reg &= ~INT_STA_MASK; - writel(reg, dp->reg_base + ANALOGIX_DP_INT_STA_MASK); + mask = analogix_dp_irq_type_to_common_int_sta4(irq_type); + if (mask) { + reg = readl(dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_4); + reg &= ~mask; + writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_4); + } + + if (irq_type & DP_IRQ_TYPE_IRQ_HPD) { + reg = readl(dp->reg_base + ANALOGIX_DP_INT_STA_MASK); + reg &= ~INT_HPD; + writel(reg, dp->reg_base + ANALOGIX_DP_INT_STA_MASK); + } } -void analogix_dp_unmute_hpd_interrupt(struct analogix_dp_device *dp) +void analogix_dp_unmute_hpd_interrupt(struct analogix_dp_device *dp, u32 irq_type) { - u32 reg; + u32 reg, mask; - /* 0: mask, 1: unmask */ - reg = COMMON_INT_MASK_4; - writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_4); + if (!irq_type) + return; - reg = INT_STA_MASK; - writel(reg, dp->reg_base + ANALOGIX_DP_INT_STA_MASK); + mask = analogix_dp_irq_type_to_common_int_sta4(irq_type); + if (mask) { + reg = readl(dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_4); + reg |= mask; + writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_4); + } + + if (irq_type & DP_IRQ_TYPE_IRQ_HPD) { + reg = readl(dp->reg_base + ANALOGIX_DP_INT_STA_MASK); + reg |= INT_HPD; + writel(reg, dp->reg_base + ANALOGIX_DP_INT_STA_MASK); + } } int analogix_dp_wait_pll_locked(struct analogix_dp_device *dp) @@ -382,20 +414,14 @@ int analogix_dp_init_analog_func(struct analogix_dp_device *dp) void analogix_dp_clear_hotplug_interrupts(struct analogix_dp_device *dp, u32 irq_type) { - u32 reg = 0; + u32 reg; if (dp->hpd_gpiod || !irq_type) return; - if (irq_type & COMMON_INT_4_HPD_IRQ) { - if (irq_type & DP_IRQ_TYPE_HP_CABLE_IN) - reg |= PLUG; - if (irq_type & DP_IRQ_TYPE_HP_CABLE_OUT) - reg |= HPD_LOST; - if (irq_type & DP_IRQ_TYPE_HP_CHANGE) - reg |= HOTPLUG_CHG; + reg = analogix_dp_irq_type_to_common_int_sta4(irq_type); + if (reg) writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_4); - } if (irq_type & DP_IRQ_TYPE_IRQ_HPD) writel(INT_HPD, dp->reg_base + ANALOGIX_DP_INT_STA); -- 2.34.1
