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author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-08-02 04:44:08 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-08-02 04:44:08 +0300 |
commit | 731c7d3a205ba89b475b2aa71b5f13dd6ae3de56 (patch) | |
tree | d2b9c3e0a98b94dfc3e4e60e35622c0143ef4ed4 /drivers/gpu/drm/omapdrm/dss/hdmi_pll.c | |
parent | 77a87824ed676ca8ff8482e4157d3adb284fd381 (diff) | |
parent | 753e7c8cbd8c503b962294303c7b5e9ea8513443 (diff) | |
download | linux-731c7d3a205ba89b475b2aa71b5f13dd6ae3de56.tar.xz |
Merge tag 'drm-for-v4.8' of git://people.freedesktop.org/~airlied/linux
Merge drm updates from Dave Airlie:
"This is the main drm pull request for 4.8.
I'm down with a cold at the moment so hopefully this isn't in too bad
a state, I finished pulling stuff last week mostly (nouveau fixes just
went in today), so only this message should be influenced by illness.
Apologies to anyone who's major feature I missed :-)
Core:
Lockless GEM BO freeing
Non-blocking atomic work
Documentation changes (rst/sphinx)
Prep for new fencing changes
Simple display helpers
Master/auth changes
Register/unregister rework
Loads of trivial patches/fixes.
New stuff:
ARM Mali display driver (not the 3D chip)
sii902x RGB->HDMI bridge
Panel:
Support for new panels
Improved backlight support
Bridge:
Convert ADV7511 to bridge driver
ADV7533 support
TC358767 (DSI/DPI to eDP) encoder chip support
i915:
BXT support enabled by default
GVT-g infrastructure
GuC command submission and fixes
BXT workarounds
SKL/BKL workarounds
Demidlayering device registration
Thundering herd fixes
Missing pci ids
Atomic updates
amdgpu/radeon:
ATPX improvements for better dGPU power control on PX systems
New power features for CZ/BR/ST
Pipelined BO moves and evictions in TTM
GPU scheduler improvements
GPU reset improvements
Overclocking on dGPUs with amdgpu
Polaris powermanagement enabled
nouveau:
GK20A/GM20B volt and clock improvements.
Initial support for GP100/GP104 GPUs, GP104 will not yet support
acceleration due to NVIDIA having not released firmware for them as of yet.
exynos:
Exynos5433 SoC with IOMMU support.
vc4:
Shader validation for branching
imx-drm:
Atomic mode setting conversion
Reworked DMFC FIFO allocation
External bridge support
analogix-dp:
RK3399 eDP support
Lots of fixes.
rockchip:
Lots of small fixes.
msm:
DT bindings cleanups
Shrinker and madvise support
ASoC HDMI codec support
tegra:
Host1x driver cleanups
SOR reworking for DP support
Runtime PM support
omapdrm:
PLL enhancements
Header refactoring
Gamma table support
arcgpu:
Simulator support
virtio-gpu:
Atomic modesetting fixes.
rcar-du:
Misc fixes.
mediatek:
MT8173 HDMI support
sti:
ASOC HDMI codec support
Minor fixes
fsl-dcu:
Suspend/resume support
Bridge support
amdkfd:
Minor fixes.
etnaviv:
Enable GPU clock gating
hisilicon:
Vblank and other fixes"
* tag 'drm-for-v4.8' of git://people.freedesktop.org/~airlied/linux: (1575 commits)
drm/nouveau/gr/nv3x: fix instobj write offsets in gr setup
drm/nouveau/acpi: fix lockup with PCIe runtime PM
drm/nouveau/acpi: check for function 0x1B before using it
drm/nouveau/acpi: return supported DSM functions
drm/nouveau/acpi: ensure matching ACPI handle and supported functions
drm/nouveau/fbcon: fix font width not divisible by 8
drm/amd/powerplay: remove enable_clock_power_gatings_tasks from initialize and resume events
drm/amd/powerplay: move clockgating to after ungating power in pp for uvd/vce
drm/amdgpu: add query device id and revision id into system info entry at CGS
drm/amdgpu: add new definition in bif header
drm/amd/powerplay: rename smum header guards
drm/amdgpu: enable UVD context buffer for older HW
drm/amdgpu: fix default UVD context size
drm/amdgpu: fix incorrect type of info_id
drm/amdgpu: make amdgpu_cgs_call_acpi_method as static
drm/amdgpu: comment out unused defaults_staturn_pro static const structure to fix the build
drm/amdgpu: enable UVD VM only on polaris
drm/amdgpu: increase timeout of IB test
drm/amdgpu: add destroy session when generate VCE destroy msg.
drm/amd: fix deadlock of job_list_lock V2
...
Diffstat (limited to 'drivers/gpu/drm/omapdrm/dss/hdmi_pll.c')
-rw-r--r-- | drivers/gpu/drm/omapdrm/dss/hdmi_pll.c | 78 |
1 files changed, 15 insertions, 63 deletions
diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi_pll.c b/drivers/gpu/drm/omapdrm/dss/hdmi_pll.c index f1015e8b8267..b8bf6a9e5557 100644 --- a/drivers/gpu/drm/omapdrm/dss/hdmi_pll.c +++ b/drivers/gpu/drm/omapdrm/dss/hdmi_pll.c @@ -17,9 +17,9 @@ #include <linux/platform_device.h> #include <linux/clk.h> #include <linux/seq_file.h> +#include <linux/pm_runtime.h> -#include <video/omapdss.h> - +#include "omapdss.h" #include "dss.h" #include "hdmi.h" @@ -39,71 +39,14 @@ void hdmi_pll_dump(struct hdmi_pll_data *pll, struct seq_file *s) DUMPPLL(PLLCTRL_CFG4); } -void hdmi_pll_compute(struct hdmi_pll_data *pll, - unsigned long target_tmds, struct dss_pll_clock_info *pi) -{ - unsigned long fint, clkdco, clkout; - unsigned long target_bitclk, target_clkdco; - unsigned long min_dco; - unsigned n, m, mf, m2, sd; - unsigned long clkin; - const struct dss_pll_hw *hw = pll->pll.hw; - - clkin = clk_get_rate(pll->pll.clkin); - - DSSDBG("clkin %lu, target tmds %lu\n", clkin, target_tmds); - - target_bitclk = target_tmds * 10; - - /* Fint */ - n = DIV_ROUND_UP(clkin, hw->fint_max); - fint = clkin / n; - - /* adjust m2 so that the clkdco will be high enough */ - min_dco = roundup(hw->clkdco_min, fint); - m2 = DIV_ROUND_UP(min_dco, target_bitclk); - if (m2 == 0) - m2 = 1; - - target_clkdco = target_bitclk * m2; - m = target_clkdco / fint; - - clkdco = fint * m; - - /* adjust clkdco with fractional mf */ - if (WARN_ON(target_clkdco - clkdco > fint)) - mf = 0; - else - mf = (u32)div_u64(262144ull * (target_clkdco - clkdco), fint); - - if (mf > 0) - clkdco += (u32)div_u64((u64)mf * fint, 262144); - - clkout = clkdco / m2; - - /* sigma-delta */ - sd = DIV_ROUND_UP(fint * m, 250000000); - - DSSDBG("N = %u, M = %u, M.f = %u, M2 = %u, SD = %u\n", - n, m, mf, m2, sd); - DSSDBG("Fint %lu, clkdco %lu, clkout %lu\n", fint, clkdco, clkout); - - pi->n = n; - pi->m = m; - pi->mf = mf; - pi->mX[0] = m2; - pi->sd = sd; - - pi->fint = fint; - pi->clkdco = clkdco; - pi->clkout[0] = clkout; -} - static int hdmi_pll_enable(struct dss_pll *dsspll) { struct hdmi_pll_data *pll = container_of(dsspll, struct hdmi_pll_data, pll); struct hdmi_wp_data *wp = pll->wp; - u16 r = 0; + int r; + + r = pm_runtime_get_sync(&pll->pdev->dev); + WARN_ON(r < 0); dss_ctrl_pll_enable(DSS_PLL_HDMI, true); @@ -118,10 +61,14 @@ static void hdmi_pll_disable(struct dss_pll *dsspll) { struct hdmi_pll_data *pll = container_of(dsspll, struct hdmi_pll_data, pll); struct hdmi_wp_data *wp = pll->wp; + int r; hdmi_wp_set_pll_pwr(wp, HDMI_PLLPWRCMD_ALLOFF); dss_ctrl_pll_enable(DSS_PLL_HDMI, false); + + r = pm_runtime_put_sync(&pll->pdev->dev); + WARN_ON(r < 0 && r != -ENOSYS); } static const struct dss_pll_ops dsi_pll_ops = { @@ -131,6 +78,8 @@ static const struct dss_pll_ops dsi_pll_ops = { }; static const struct dss_pll_hw dss_omap4_hdmi_pll_hw = { + .type = DSS_PLL_TYPE_B, + .n_max = 255, .m_min = 20, .m_max = 4095, @@ -154,6 +103,8 @@ static const struct dss_pll_hw dss_omap4_hdmi_pll_hw = { }; static const struct dss_pll_hw dss_omap5_hdmi_pll_hw = { + .type = DSS_PLL_TYPE_B, + .n_max = 255, .m_min = 20, .m_max = 2045, @@ -225,6 +176,7 @@ int hdmi_pll_init(struct platform_device *pdev, struct hdmi_pll_data *pll, int r; struct resource *res; + pll->pdev = pdev; pll->wp = wp; res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pll"); |