From: Srinivas Neeli <srinivas.neeli@xilinx.com> To: linus.walleij@linaro.org, bgolaszewski@baylibre.com, michal.simek@xilinx.com, shubhrajyoti.datta@xilinx.com Cc: linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, git@xilinx.com Subject: [PATCH 1/8] gpio: zynq: Fix for bug in zynq_gpio_restore_context API Date: Thu, 26 Dec 2019 17:42:11 +0530 [thread overview] Message-ID: <1577362338-28744-2-git-send-email-srinivas.neeli@xilinx.com> (raw) In-Reply-To: <1577362338-28744-1-git-send-email-srinivas.neeli@xilinx.com> From: Swapna Manupati <swapna.manupati@xilinx.com> This patch writes the inverse value of Interrupt Mask Status register into the Interrupt Enable register in zynq_gpio_restore_context API to fix the bug. Fixes: e11de4de28c0 ("gpio: zynq: Add support for suspend resume") Signed-off-by: Swapna Manupati <swapna.manupati@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Srinivas Neeli <srinivas.neeli@xilinx.com> --- drivers/gpio/gpio-zynq.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c index 4c3f6370eab4..05ba16fffdad 100644 --- a/drivers/gpio/gpio-zynq.c +++ b/drivers/gpio/gpio-zynq.c @@ -684,6 +684,8 @@ static void zynq_gpio_restore_context(struct zynq_gpio *gpio) unsigned int bank_num; for (bank_num = 0; bank_num < gpio->p_data->max_bank; bank_num++) { + writel_relaxed(ZYNQ_GPIO_IXR_DISABLE_ALL, gpio->base_addr + + ZYNQ_GPIO_INTDIS_OFFSET(bank_num)); writel_relaxed(gpio->context.datalsw[bank_num], gpio->base_addr + ZYNQ_GPIO_DATA_LSW_OFFSET(bank_num)); @@ -693,9 +695,6 @@ static void zynq_gpio_restore_context(struct zynq_gpio *gpio) writel_relaxed(gpio->context.dirm[bank_num], gpio->base_addr + ZYNQ_GPIO_DIRM_OFFSET(bank_num)); - writel_relaxed(gpio->context.int_en[bank_num], - gpio->base_addr + - ZYNQ_GPIO_INTEN_OFFSET(bank_num)); writel_relaxed(gpio->context.int_type[bank_num], gpio->base_addr + ZYNQ_GPIO_INTTYPE_OFFSET(bank_num)); @@ -705,6 +704,9 @@ static void zynq_gpio_restore_context(struct zynq_gpio *gpio) writel_relaxed(gpio->context.int_any[bank_num], gpio->base_addr + ZYNQ_GPIO_INTANY_OFFSET(bank_num)); + writel_relaxed(~(gpio->context.int_en[bank_num]), + gpio->base_addr + + ZYNQ_GPIO_INTEN_OFFSET(bank_num)); } } -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: Srinivas Neeli <srinivas.neeli@xilinx.com> To: linus.walleij@linaro.org, bgolaszewski@baylibre.com, michal.simek@xilinx.com, shubhrajyoti.datta@xilinx.com Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, git@xilinx.com Subject: [PATCH 1/8] gpio: zynq: Fix for bug in zynq_gpio_restore_context API Date: Thu, 26 Dec 2019 17:42:11 +0530 [thread overview] Message-ID: <1577362338-28744-2-git-send-email-srinivas.neeli@xilinx.com> (raw) In-Reply-To: <1577362338-28744-1-git-send-email-srinivas.neeli@xilinx.com> From: Swapna Manupati <swapna.manupati@xilinx.com> This patch writes the inverse value of Interrupt Mask Status register into the Interrupt Enable register in zynq_gpio_restore_context API to fix the bug. Fixes: e11de4de28c0 ("gpio: zynq: Add support for suspend resume") Signed-off-by: Swapna Manupati <swapna.manupati@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Srinivas Neeli <srinivas.neeli@xilinx.com> --- drivers/gpio/gpio-zynq.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c index 4c3f6370eab4..05ba16fffdad 100644 --- a/drivers/gpio/gpio-zynq.c +++ b/drivers/gpio/gpio-zynq.c @@ -684,6 +684,8 @@ static void zynq_gpio_restore_context(struct zynq_gpio *gpio) unsigned int bank_num; for (bank_num = 0; bank_num < gpio->p_data->max_bank; bank_num++) { + writel_relaxed(ZYNQ_GPIO_IXR_DISABLE_ALL, gpio->base_addr + + ZYNQ_GPIO_INTDIS_OFFSET(bank_num)); writel_relaxed(gpio->context.datalsw[bank_num], gpio->base_addr + ZYNQ_GPIO_DATA_LSW_OFFSET(bank_num)); @@ -693,9 +695,6 @@ static void zynq_gpio_restore_context(struct zynq_gpio *gpio) writel_relaxed(gpio->context.dirm[bank_num], gpio->base_addr + ZYNQ_GPIO_DIRM_OFFSET(bank_num)); - writel_relaxed(gpio->context.int_en[bank_num], - gpio->base_addr + - ZYNQ_GPIO_INTEN_OFFSET(bank_num)); writel_relaxed(gpio->context.int_type[bank_num], gpio->base_addr + ZYNQ_GPIO_INTTYPE_OFFSET(bank_num)); @@ -705,6 +704,9 @@ static void zynq_gpio_restore_context(struct zynq_gpio *gpio) writel_relaxed(gpio->context.int_any[bank_num], gpio->base_addr + ZYNQ_GPIO_INTANY_OFFSET(bank_num)); + writel_relaxed(~(gpio->context.int_en[bank_num]), + gpio->base_addr + + ZYNQ_GPIO_INTEN_OFFSET(bank_num)); } } -- 2.7.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-12-26 12:13 UTC|newest] Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-12-26 12:12 [PATCH 0/8] gpio: zynq: Update on gpio-zynq driver Srinivas Neeli 2019-12-26 12:12 ` Srinivas Neeli 2019-12-26 12:12 ` Srinivas Neeli [this message] 2019-12-26 12:12 ` [PATCH 1/8] gpio: zynq: Fix for bug in zynq_gpio_restore_context API Srinivas Neeli 2020-01-07 10:25 ` Linus Walleij 2020-01-07 10:25 ` Linus Walleij 2019-12-26 12:12 ` [PATCH 2/8] gpio: zynq: protect direction in/out with a spinlock Srinivas Neeli 2019-12-26 12:12 ` Srinivas Neeli 2020-01-02 17:40 ` Bartosz Golaszewski 2020-01-02 17:40 ` Bartosz Golaszewski 2019-12-26 12:12 ` [PATCH 3/8] dt-bindings: gpio: Add binding for Versal gpio Srinivas Neeli 2019-12-26 12:12 ` Srinivas Neeli 2019-12-26 12:12 ` [PATCH 4/8] devicetree-binding: Add pmc gpio node Srinivas Neeli 2019-12-26 12:12 ` Srinivas Neeli 2019-12-26 12:12 ` [PATCH 5/8] gpio: zynq: Add Versal support Srinivas Neeli 2019-12-26 12:12 ` Srinivas Neeli 2020-01-02 17:41 ` Bartosz Golaszewski 2020-01-02 17:41 ` Bartosz Golaszewski 2019-12-26 12:12 ` [PATCH 6/8] gpio: zynq: Disable the irq if it is not a wakeup source Srinivas Neeli 2019-12-26 12:12 ` Srinivas Neeli 2019-12-26 12:12 ` [PATCH 7/8] gpio: zynq: Add pmc gpio support Srinivas Neeli 2019-12-26 12:12 ` Srinivas Neeli 2020-01-02 17:55 ` Bartosz Golaszewski 2020-01-02 17:55 ` Bartosz Golaszewski 2019-12-26 12:12 ` [PATCH 8/8] gpio: zynq: Remove error prints in EPROBE_DEFER Srinivas Neeli 2019-12-26 12:12 ` Srinivas Neeli
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