diff options
Diffstat (limited to 'target/linux/ipq807x/patches-5.15/0048-v6.1-clk-qcom-reset-Allow-specifying-custom-reset-delay.patch')
-rw-r--r-- | target/linux/ipq807x/patches-5.15/0048-v6.1-clk-qcom-reset-Allow-specifying-custom-reset-delay.patch | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/target/linux/ipq807x/patches-5.15/0048-v6.1-clk-qcom-reset-Allow-specifying-custom-reset-delay.patch b/target/linux/ipq807x/patches-5.15/0048-v6.1-clk-qcom-reset-Allow-specifying-custom-reset-delay.patch deleted file mode 100644 index 6a525f2c3e..0000000000 --- a/target/linux/ipq807x/patches-5.15/0048-v6.1-clk-qcom-reset-Allow-specifying-custom-reset-delay.patch +++ /dev/null @@ -1,54 +0,0 @@ -From 72bc31aa621e21a7c36a7da8aa6f6a77bb234e0b Mon Sep 17 00:00:00 2001 -From: Stephan Gerhold <stephan.gerhold@kernkonzept.com> -Date: Wed, 6 Jul 2022 15:41:29 +0200 -Subject: [PATCH] clk: qcom: reset: Allow specifying custom reset delay - -The amount of time required between asserting and deasserting the reset -signal can vary depending on the involved hardware component. Sometimes -1 us might not be enough and a larger delay is necessary to conform to -the specifications. - -Usually this is worked around in the consuming drivers, by replacing -reset_control_reset() with a sequence of reset_control_assert(), waiting -for a custom delay, followed by reset_control_deassert(). - -However, in some cases the driver making use of the reset is generic and -can be used with different reset controllers. In this case the reset -time requirement is better handled directly by the reset controller -driver. - -Make this possible by adding an "udelay" field to the qcom_reset_map -that allows setting a different reset delay (in microseconds). - -Signed-off-by: Stephan Gerhold <stephan.gerhold@kernkonzept.com> -Signed-off-by: Bjorn Andersson <andersson@kernel.org> -Link: https://lore.kernel.org/r/20220706134132.3623415-4-stephan.gerhold@kernkonzept.com ---- - drivers/clk/qcom/reset.c | 4 +++- - drivers/clk/qcom/reset.h | 1 + - 2 files changed, 4 insertions(+), 1 deletion(-) - ---- a/drivers/clk/qcom/reset.c -+++ b/drivers/clk/qcom/reset.c -@@ -13,8 +13,10 @@ - - static int qcom_reset(struct reset_controller_dev *rcdev, unsigned long id) - { -+ struct qcom_reset_controller *rst = to_qcom_reset_controller(rcdev); -+ - rcdev->ops->assert(rcdev, id); -- udelay(1); -+ udelay(rst->reset_map[id].udelay ?: 1); /* use 1 us as default */ - rcdev->ops->deassert(rcdev, id); - return 0; - } ---- a/drivers/clk/qcom/reset.h -+++ b/drivers/clk/qcom/reset.h -@@ -11,6 +11,7 @@ - struct qcom_reset_map { - unsigned int reg; - u8 bit; -+ u8 udelay; - }; - - struct regmap; |