diff options
Diffstat (limited to 'meta-xilinx-bsp/recipes-graphics/mali/kernel-module-mali/0005-linux-mali_kernel_linux.c-Handle-clock-when-probed-a.patch')
| -rw-r--r-- | meta-xilinx-bsp/recipes-graphics/mali/kernel-module-mali/0005-linux-mali_kernel_linux.c-Handle-clock-when-probed-a.patch | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/meta-xilinx-bsp/recipes-graphics/mali/kernel-module-mali/0005-linux-mali_kernel_linux.c-Handle-clock-when-probed-a.patch b/meta-xilinx-bsp/recipes-graphics/mali/kernel-module-mali/0005-linux-mali_kernel_linux.c-Handle-clock-when-probed-a.patch new file mode 100644 index 00000000..3d784604 --- /dev/null +++ b/meta-xilinx-bsp/recipes-graphics/mali/kernel-module-mali/0005-linux-mali_kernel_linux.c-Handle-clock-when-probed-a.patch @@ -0,0 +1,90 @@ +From e67e20ec6ff0c9720d87844270421453c738066a Mon Sep 17 00:00:00 2001 +From: Madhurkiran Harikrishnan <madhurki@xilinx.com> +Date: Thu, 16 Feb 2017 12:15:58 -0800 +Subject: [PATCH 5/9] linux/mali_kernel_linux.c: Handle clock when probed and + removed + +This patch will handle the clock through clock +specifier for GPU PP0 and PP1. + +Signed-off-by: Madhurkiran Harikrishnan <madhurki@xilinx.com> +Upstream Status: Inappropriate [Xilinx specific] +--- + .../src/devicedrv/mali/linux/mali_kernel_linux.c | 40 +++++++++++++++++++++- + 1 file changed, 39 insertions(+), 1 deletion(-) + +diff --git a/driver/src/devicedrv/mali/linux/mali_kernel_linux.c b/driver/src/devicedrv/mali/linux/mali_kernel_linux.c +index d7893a3..f15fb56 100644 +--- linux/mali_kernel_linux.c ++++ b/linux/mali_kernel_linux.c +@@ -45,6 +45,14 @@ + #if defined(CONFIG_MALI400_INTERNAL_PROFILING) + #include "mali_profiling_internal.h" + #endif ++ ++#if defined(CONFIG_ARCH_ZYNQMP) ++/* Initialize variables for clocks */ ++struct clk *clk_gpu; ++struct clk *clk_gpu_pp0; ++struct clk *clk_gpu_pp1; ++#endif ++ + #if defined(CONFIG_MALI400_PROFILING) && defined(CONFIG_MALI_DVFS) + #include "mali_osk_profiling.h" + #include "mali_dvfs_policy.h" +@@ -580,7 +588,23 @@ static int mali_probe(struct platform_device *pdev) + } + #endif + +- ++#if defined(CONFIG_ARCH_ZYNQMP) ++ /* Initialize clocks for GPU and PP */ ++ clk_gpu = devm_clk_get(&pdev->dev, "gpu"); ++ if (IS_ERR(clk_gpu)) ++ return PTR_ERR(clk_gpu); ++ clk_prepare_enable(clk_gpu); ++ ++ clk_gpu_pp0 = devm_clk_get(&pdev->dev, "gpu_pp0"); ++ if (IS_ERR(clk_gpu_pp0)) ++ return PTR_ERR(clk_gpu_pp0); ++ clk_prepare_enable(clk_gpu_pp0); ++ ++ clk_gpu_pp1 = devm_clk_get(&pdev->dev, "gpu_pp1"); ++ if (IS_ERR(clk_gpu_pp1)) ++ return PTR_ERR(clk_gpu_pp1); ++ clk_prepare_enable(clk_gpu_pp1); ++#endif + if (_MALI_OSK_ERR_OK == _mali_osk_wq_init()) { + /* Initialize the Mali GPU HW specified by pdev */ + if (_MALI_OSK_ERR_OK == mali_initialize_subsystems()) { +@@ -608,6 +632,12 @@ static int mali_probe(struct platform_device *pdev) + _mali_osk_wq_term(); + } + ++#if defined(CONFIG_ARCH_ZYNQMP) ++ clk_disable_unprepare(clk_gpu); ++ clk_disable_unprepare(clk_gpu_pp0); ++ clk_disable_unprepare(clk_gpu_pp1); ++#endif ++ + #ifdef CONFIG_MALI_DEVFREQ + mali_devfreq_term(mdev); + devfreq_init_failed: +@@ -673,6 +703,14 @@ static int mali_remove(struct platform_device *pdev) + mali_platform_device_deinit(mali_platform_device); + #endif + mali_platform_device = NULL; ++ ++#if defined(CONFIG_ARCH_ZYNQMP) ++ /* Remove clock */ ++ clk_disable_unprepare(clk_gpu); ++ clk_disable_unprepare(clk_gpu_pp0); ++ clk_disable_unprepare(clk_gpu_pp1); ++#endif ++ + return 0; + } + +-- +2.7.4 + |