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(unknown [61.154.14.86]) by smtp.qiye.163.com (Hmail) with ESMTP id 5189b85f3; Mon, 19 Oct 2026 16:59:06 +0800 (GMT+08:00) From: Damon Ding To: Andrzej Hajda , Neil Armstrong , Robert Foss , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Jingoo Han , Inki Dae , Seung-Woo Kim , Kyungmin Park , Krzysztof Kozlowski , Peter Griffin , Alim Akhtar , Heiko Stuebner Cc: Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Luca Ceresoli , Dmitry Baryshkov , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, Damon Ding Subject: [PATCH v4 05/14] drm/bridge: analogix_dp: Extend mute/unmute HPD interrupts to accept irq bitmask Date: Mon, 19 Oct 2026 16:58:27 +0800 Message-Id: <20261019085836.3065008-6-damon.ding@rock-chips.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20261019085836.3065008-1-damon.ding@rock-chips.com> References: <20261019085836.3065008-1-damon.ding@rock-chips.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-HM-Tid: 0aa15362cd4703a8kunm6ee755052eac20 X-HM-MType: 1 X-HM-Spam-Status: e1kfGhgUHx5ZQUpXWQgPGg8OCBgUHx5ZQUlOS1dZFg8aDwILHllBWSg2Ly tZV1koWUFITzdXWRgWCB1ZQUpXWS1ZQUlXWQ8JGhUIEh9ZQVlDGEgdVk0ZGBlCHU4fHUxPTFYVFA kWGhdVEwETFhoSFyQUDg9ZV1kYEgtZQVlNSlVKTk9VSk9VQ01ZV1kWGg8SFR0UWUFZT0tIVUpLSU 9PT0hVSktLVUpCS0tZBg++ DKIM-Signature: a=rsa-sha256; b=K80nvsKhJZ+bj6K9S3rgnMSoAvBK9ts7C7Fd9slP6lYu3I5hoM0Vyjh0wvZhai99mMI2RkJHgcaFEEO0EWE8mseHmklFcSA1RG1hNibgy2smr+Zwo+JRPIcsnfJM/5LyDzP8ovE1sjPm1rnsBQPg5X2wbXIUJM3zstjJy96rOMI=; c=relaxed/relaxed; s=default; d=rock-chips.com; v=1; bh=Ib+2qnriz6dyrp57c/Zt7thWj09jat9644102uTcbYE=; h=date:mime-version:subject:message-id:from; 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. Tested-by: Heiko Stuebner Signed-off-by: Damon Ding --- 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. Changes in v4: - Add Tested-by tag. --- .../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