Move the clock parsing to adreno_gpu_init() to allow for target specific probing and manipulation of the clock tables. Signed-off-by: Jordan Crouse <jcrouse@xxxxxxxxxxxxxx> --- drivers/gpu/drm/msm/adreno/adreno_device.c | 72 ---------------------------- drivers/gpu/drm/msm/adreno/adreno_gpu.c | 77 ++++++++++++++++++++++++++++-- drivers/gpu/drm/msm/adreno/adreno_gpu.h | 1 - 3 files changed, 73 insertions(+), 77 deletions(-) diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c index 80d26b9..250fa1e 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_device.c +++ b/drivers/gpu/drm/msm/adreno/adreno_device.c @@ -17,7 +17,6 @@ * this program. If not, see <http://www.gnu.org/licenses/>. */ -#include <linux/pm_opp.h> #include "adreno_gpu.h" #define ANY_ID 0xff @@ -196,70 +195,6 @@ static int find_chipid(struct device *dev, struct adreno_rev *rev) return 0; } -/* Get legacy powerlevels from qcom,gpu-pwrlevels and populate the opp table */ -static int adreno_get_legacy_pwrlevels(struct device *dev) -{ - struct device_node *child, *node; - int ret; - - node = of_find_compatible_node(dev->of_node, NULL, - "qcom,gpu-pwrlevels"); - if (!node) { - dev_err(dev, "Could not find the GPU powerlevels\n"); - return -ENXIO; - } - - for_each_child_of_node(node, child) { - unsigned int val; - - ret = of_property_read_u32(child, "qcom,gpu-freq", &val); - if (ret) - continue; - - /* - * Skip the intentionally bogus clock value found at the bottom - * of most legacy frequency tables - */ - if (val != 27000000) - dev_pm_opp_add(dev, val, 0); - } - - return 0; -} - -static int adreno_get_pwrlevels(struct device *dev, - struct adreno_platform_config *config) -{ - unsigned long freq = ULONG_MAX; - struct dev_pm_opp *opp; - int ret; - - /* You down with OPP? */ - if (!of_find_property(dev->of_node, "operating-points-v2", NULL)) - ret = adreno_get_legacy_pwrlevels(dev); - else - ret = dev_pm_opp_of_add_table(dev); - - if (ret) - return ret; - - /* Find the fastest defined rate */ - opp = dev_pm_opp_find_freq_floor(dev, &freq); - if (!IS_ERR(opp)) { - config->fast_rate = freq; - dev_pm_opp_put(opp); - } - - if (!config->fast_rate) { - DRM_DEV_INFO(dev, - "Could not find clock rate. Using default\n"); - /* Pick a suitably safe clock speed for any target */ - config->fast_rate = 200000000; - } - - return 0; -} - static int adreno_bind(struct device *dev, struct device *master, void *data) { static struct adreno_platform_config config = {}; @@ -272,13 +207,6 @@ static int adreno_bind(struct device *dev, struct device *master, void *data) if (ret) return ret; - /* find clock rates: */ - config.fast_rate = 0; - - ret = adreno_get_pwrlevels(dev, &config); - if (ret) - return ret; - dev->platform_data = &config; set_gpu_pdev(drm, to_platform_device(dev)); diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index 61e3091..b4bac84 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -17,6 +17,7 @@ * this program. If not, see <http://www.gnu.org/licenses/>. */ +#include <linux/pm_opp.h> #include "adreno_gpu.h" #include "msm_gem.h" #include "msm_mmu.h" @@ -465,6 +466,76 @@ void adreno_wait_ring(struct msm_ringbuffer *ring, uint32_t ndwords) ring->id); } +/* Get legacy powerlevels from qcom,gpu-pwrlevels and populate the opp table */ +static int adreno_get_legacy_pwrlevels(struct device *dev) +{ + struct device_node *child, *node; + int ret; + + node = of_find_compatible_node(dev->of_node, NULL, + "qcom,gpu-pwrlevels"); + if (!node) { + dev_err(dev, "Could not find the GPU powerlevels\n"); + return -ENXIO; + } + + for_each_child_of_node(node, child) { + unsigned int val; + + ret = of_property_read_u32(child, "qcom,gpu-freq", &val); + if (ret) + continue; + + /* + * Skip the intentionally bogus clock value found at the bottom + * of most legacy frequency tables + */ + if (val != 27000000) + dev_pm_opp_add(dev, val, 0); + } + + return 0; +} + +static int adreno_get_pwrlevels(struct device *dev, + struct msm_gpu *gpu) +{ + unsigned long freq = ULONG_MAX; + struct dev_pm_opp *opp; + int ret; + + gpu->fast_rate = 0; + + /* You down with OPP? */ + if (!of_find_property(dev->of_node, "operating-points-v2", NULL)) + ret = adreno_get_legacy_pwrlevels(dev); + else { + ret = dev_pm_opp_of_add_table(dev); + if (ret) + dev_err(dev, "Unable to set the OPP table\n"); + } + + if (!ret) { + /* Find the fastest defined rate */ + opp = dev_pm_opp_find_freq_floor(dev, &freq); + if (!IS_ERR(opp)) { + gpu->fast_rate = freq; + dev_pm_opp_put(opp); + } + } + + if (!gpu->fast_rate) { + dev_warn(dev, + "Could not find a clock rate. Using a reasonable default\n"); + /* Pick a suitably safe clock speed for any target */ + gpu->fast_rate = 200000000; + } + + DBG("fast_rate=%u, slow_rate=27000000", gpu->fast_rate); + + return 0; +} + int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev, struct adreno_gpu *adreno_gpu, const struct adreno_gpu_funcs *funcs, int nr_rings) @@ -479,10 +550,6 @@ int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev, adreno_gpu->revn = adreno_gpu->info->revn; adreno_gpu->rev = config->rev; - gpu->fast_rate = config->fast_rate; - - DBG("fast_rate=%u, slow_rate=27000000", gpu->fast_rate); - adreno_gpu_config.ioname = "kgsl_3d0_reg_memory"; adreno_gpu_config.irqname = "kgsl_3d0_irq"; @@ -491,6 +558,8 @@ int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev, adreno_gpu_config.nr_rings = nr_rings; + adreno_get_pwrlevels(&pdev->dev, gpu); + pm_runtime_set_autosuspend_delay(&pdev->dev, DRM_MSM_INACTIVE_PERIOD); pm_runtime_use_autosuspend(&pdev->dev); pm_runtime_enable(&pdev->dev); diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h index 88d1bdf..8d3d0a9 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h @@ -129,7 +129,6 @@ struct adreno_gpu { /* platform config data (ie. from DT, or pdata) */ struct adreno_platform_config { struct adreno_rev rev; - uint32_t fast_rate; }; #define ADRENO_IDLE_TIMEOUT msecs_to_jiffies(1000) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
