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authorDave Airlie <airlied@redhat.com>2016-09-28 12:08:49 +1000
committerDave Airlie <airlied@redhat.com>2016-09-28 12:08:49 +1000
commitca09fb9f60b5f3ab2d57e761aaeea89a5147d784 (patch)
tree908e42ecf32d2601f4c5c340c6c4626841baa661 /drivers/gpu/drm/tegra
parent9f4ef05bcdcfdf911b056b471dd3c6a4f331b644 (diff)
parent08895a8b6b06ed2323cd97a36ee40a116b3db8ed (diff)
downloadlinux-ca09fb9f60b5f3ab2d57e761aaeea89a5147d784.tar.bz2
Merge tag 'v4.8-rc8' into drm-next
Linux 4.8-rc8 There was a lot of fallout in the imx/amdgpu/i915 drivers, so backmerge it now to avoid troubles. * tag 'v4.8-rc8': (1442 commits) Linux 4.8-rc8 fault_in_multipages_readable() throws set-but-unused error mm: check VMA flags to avoid invalid PROT_NONE NUMA balancing radix tree: fix sibling entry handling in radix_tree_descend() radix tree test suite: Test radix_tree_replace_slot() for multiorder entries fix memory leaks in tracing_buffers_splice_read() tracing: Move mutex to protect against resetting of seq data MIPS: Fix delay slot emulation count in debugfs MIPS: SMP: Fix possibility of deadlock when bringing CPUs online mm: delete unnecessary and unsafe init_tlb_ubc() huge tmpfs: fix Committed_AS leak shmem: fix tmpfs to handle the huge= option properly blk-mq: skip unmapped queues in blk_mq_alloc_request_hctx MIPS: Fix pre-r6 emulation FPU initialisation arm64: kgdb: handle read-only text / modules arm64: Call numa_store_cpu_info() earlier. locking/hung_task: Fix typo in CONFIG_DETECT_HUNG_TASK help text nvme-rdma: only clear queue flags after successful connect i2c: qup: skip qup_i2c_suspend if the device is already runtime suspended perf/core: Limit matching exclusive events to one PMU ...
Diffstat (limited to 'drivers/gpu/drm/tegra')
-rw-r--r--drivers/gpu/drm/tegra/dsi.c43
1 files changed, 36 insertions, 7 deletions
diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c
index 3d228ad90e0f..3dea1216bafd 100644
--- a/drivers/gpu/drm/tegra/dsi.c
+++ b/drivers/gpu/drm/tegra/dsi.c
@@ -840,6 +840,21 @@ static const struct drm_encoder_funcs tegra_dsi_encoder_funcs = {
.destroy = tegra_output_encoder_destroy,
};
+static void tegra_dsi_unprepare(struct tegra_dsi *dsi)
+{
+ int err;
+
+ if (dsi->slave)
+ tegra_dsi_unprepare(dsi->slave);
+
+ err = tegra_mipi_disable(dsi->mipi);
+ if (err < 0)
+ dev_err(dsi->dev, "failed to disable MIPI calibration: %d\n",
+ err);
+
+ pm_runtime_put(dsi->dev);
+}
+
static void tegra_dsi_encoder_disable(struct drm_encoder *encoder)
{
struct tegra_output *output = encoder_to_output(encoder);
@@ -876,7 +891,26 @@ static void tegra_dsi_encoder_disable(struct drm_encoder *encoder)
tegra_dsi_disable(dsi);
- pm_runtime_put(dsi->dev);
+ tegra_dsi_unprepare(dsi);
+}
+
+static void tegra_dsi_prepare(struct tegra_dsi *dsi)
+{
+ int err;
+
+ pm_runtime_get_sync(dsi->dev);
+
+ err = tegra_mipi_enable(dsi->mipi);
+ if (err < 0)
+ dev_err(dsi->dev, "failed to enable MIPI calibration: %d\n",
+ err);
+
+ err = tegra_dsi_pad_calibrate(dsi);
+ if (err < 0)
+ dev_err(dsi->dev, "MIPI calibration failed: %d\n", err);
+
+ if (dsi->slave)
+ tegra_dsi_prepare(dsi->slave);
}
static void tegra_dsi_encoder_enable(struct drm_encoder *encoder)
@@ -887,13 +921,8 @@ static void tegra_dsi_encoder_enable(struct drm_encoder *encoder)
struct tegra_dsi *dsi = to_dsi(output);
struct tegra_dsi_state *state;
u32 value;
- int err;
-
- pm_runtime_get_sync(dsi->dev);
- err = tegra_dsi_pad_calibrate(dsi);
- if (err < 0)
- dev_err(dsi->dev, "MIPI calibration failed: %d\n", err);
+ tegra_dsi_prepare(dsi);
state = tegra_dsi_get_state(dsi);