From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed, 14 Feb 2018 09:09:05 +0000
Subject: drm/i915/sdvo: Tidy up commentary
Git-commit: c16336b95c615fa84560a2e9786df71c0c55677b
Patch-mainline: v4.17-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Drop the kerneldoc markup from the non-kerneldoc comments and convert
the multi-line comments to the canonical format.
drivers/gpu/drm/i915/intel_sdvo.c:223: warning: Function parameter or member 'intel_sdvo' not described in 'intel_sdvo_write_sdvox'
drivers/gpu/drm/i915/intel_sdvo.c:223: warning: Function parameter or member 'val' not described in 'intel_sdvo_write_sdvox'
drivers/gpu/drm/i915/intel_sdvo.c:653: warning: Function parameter or member 'intel_sdvo' not described in 'intel_sdvo_get_trained_inputs'
drivers/gpu/drm/i915/intel_sdvo.c:653: warning: Function parameter or member 'input_1' not described in 'intel_sdvo_get_trained_inputs'
drivers/gpu/drm/i915/intel_sdvo.c:653: warning: Function parameter or member 'input_2' not described in 'intel_sdvo_get_trained_inputs'
drivers/gpu/drm/i915/intel_sdvo.c:2311: warning: Function parameter or member 'dev_priv' not described in 'intel_sdvo_select_ddc_bus'
drivers/gpu/drm/i915/intel_sdvo.c:2311: warning: Function parameter or member 'sdvo' not described in 'intel_sdvo_select_ddc_bus'
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180214090905.4747-1-chris@chris-wilson.co.uk
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/i915/intel_sdvo.c | 82 ++++++++++++++++++++++++--------------
1 file changed, 53 insertions(+), 29 deletions(-)
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -214,7 +214,7 @@ static bool
intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo,
struct intel_sdvo_connector *intel_sdvo_connector);
-/**
+/*
* Writes the SDVOB or SDVOC with the given value, but always writes both
* SDVOB and SDVOC to work around apparent hardware issues (according to
* comments in the BIOS).
@@ -250,10 +250,10 @@ static void intel_sdvo_write_sdvox(struc
* writing them only once doesn't appear to 'stick'.
* The BIOS does this too. Yay, magic
*/
- for (i = 0; i < 2; i++)
- {
+ for (i = 0; i < 2; i++) {
I915_WRITE(GEN3_SDVOB, bval);
POSTING_READ(GEN3_SDVOB);
+
I915_WRITE(GEN3_SDVOC, cval);
POSTING_READ(GEN3_SDVOC);
}
@@ -643,7 +643,7 @@ static bool intel_sdvo_set_target_input(
&targets, sizeof(targets));
}
-/**
+/*
* Return whether each input is trained.
*
* This function is making an assumption about the layout of the response,
@@ -1061,8 +1061,10 @@ intel_sdvo_set_output_timings_from_mode(
return true;
}
-/* Asks the sdvo controller for the preferred input mode given the output mode.
- * Unfortunately we have to set up the full output mode to do that. */
+/*
+ * Asks the sdvo controller for the preferred input mode given the output mode.
+ * Unfortunately we have to set up the full output mode to do that.
+ */
static bool
intel_sdvo_get_preferred_input_mode(struct intel_sdvo *intel_sdvo,
const struct drm_display_mode *mode,
@@ -1095,8 +1097,10 @@ static void i9xx_adjust_sdvo_tv_clock(st
unsigned dotclock = pipe_config->port_clock;
struct dpll *clock = &pipe_config->dpll;
- /* SDVO TV has fixed PLL values depend on its clock range,
- this mirrors vbios setting. */
+ /*
+ * SDVO TV has fixed PLL values depend on its clock range,
+ * this mirrors vbios setting.
+ */
if (dotclock >= 100000 && dotclock < 140500) {
clock->p1 = 2;
clock->p2 = 10;
@@ -1132,7 +1136,8 @@ static bool intel_sdvo_compute_config(st
if (HAS_PCH_SPLIT(to_i915(encoder->base.dev)))
pipe_config->has_pch_encoder = true;
- /* We need to construct preferred input timings based on our
+ /*
+ * We need to construct preferred input timings based on our
* output timings. To do that, we have to set the output
* timings, even though this isn't really the right place in
* the sequence to do it. Oh well.
@@ -1155,7 +1160,8 @@ static bool intel_sdvo_compute_config(st
adjusted_mode);
}
- /* Make the CRTC code factor in the SDVO pixel multiplier. The
+ /*
+ * Make the CRTC code factor in the SDVO pixel multiplier. The
* SDVO device will factor out the multiplier during mode_set.
*/
pipe_config->pixel_multiplier =
@@ -1169,9 +1175,12 @@ static bool intel_sdvo_compute_config(st
pipe_config->has_audio = true;
if (intel_sdvo_state->base.broadcast_rgb == INTEL_BROADCAST_RGB_AUTO) {
- /* See CEA-861-E - 5.1 Default Encoding Parameters */
- /* FIXME: This bit is only valid when using TMDS encoding and 8
- * bit per color mode. */
+ /*
+ * See CEA-861-E - 5.1 Default Encoding Parameters
+ *
+ * FIXME: This bit is only valid when using TMDS encoding and 8
+ * bit per color mode.
+ */
if (pipe_config->has_hdmi_sink &&
drm_match_cea_mode(adjusted_mode) > 1)
pipe_config->limited_color_range = true;
@@ -1272,7 +1281,8 @@ static void intel_sdvo_pre_enable(struct
intel_sdvo_update_props(intel_sdvo, sdvo_state);
- /* First, set the input mapping for the first input to our controlled
+ /*
+ * First, set the input mapping for the first input to our controlled
* output. This is only correct if we're a single-input device, in
* which case the first input is the output from the appropriate SDVO
* channel on the motherboard. In a two-input device, the first input
@@ -1435,8 +1445,10 @@ static void intel_sdvo_get_config(struct
ret = intel_sdvo_get_input_timing(intel_sdvo, &dtd);
if (!ret) {
- /* Some sdvo encoders are not spec compliant and don't
- * implement the mandatory get_timings function. */
+ /*
+ * Some sdvo encoders are not spec compliant and don't
+ * implement the mandatory get_timings function.
+ */
DRM_DEBUG_DRIVER("failed to retrieve SDVO DTD\n");
pipe_config->quirks |= PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS;
} else {
@@ -1585,7 +1597,9 @@ static void intel_enable_sdvo(struct int
intel_wait_for_vblank(dev_priv, intel_crtc->pipe);
success = intel_sdvo_get_trained_inputs(intel_sdvo, &input1, &input2);
- /* Warn if the device reported failure to sync.
+ /*
+ * Warn if the device reported failure to sync.
+ *
* A lot of SDVO devices fail to notify of sync, but it's
* a given it the status is a success, we succeeded.
*/
@@ -1672,8 +1686,10 @@ static uint16_t intel_sdvo_get_hotplug_s
if (!I915_HAS_HOTPLUG(dev_priv))
return 0;
- /* HW Erratum: SDVO Hotplug is broken on all i945G chips, there's noise
- * on the line. */
+ /*
+ * HW Erratum: SDVO Hotplug is broken on all i945G chips, there's noise
+ * on the line.
+ */
if (IS_I945G(dev_priv) || IS_I945GM(dev_priv))
return 0;
@@ -1957,7 +1973,8 @@ static void intel_sdvo_get_tv_modes(stru
DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
connector->base.id, connector->name);
- /* Read the list of supported input resolutions for the selected TV
+ /*
+ * Read the list of supported input resolutions for the selected TV
* format.
*/
format_map = 1 << conn_state->tv.mode;
@@ -2268,7 +2285,8 @@ intel_sdvo_guess_ddc_bus(struct intel_sd
uint16_t mask = 0;
unsigned int num_bits;
- /* Make a mask of outputs less than or equal to our own priority in the
+ /*
+ * Make a mask of outputs less than or equal to our own priority in the
* list.
*/
switch (sdvo->controlled_output) {
@@ -2298,7 +2316,7 @@ intel_sdvo_guess_ddc_bus(struct intel_sd
sdvo->ddc_bus = 1 << num_bits;
}
-/**
+/*
* Choose the appropriate DDC bus for control bus switch command for this
* SDVO output based on the controlled output.
*
@@ -2342,9 +2360,11 @@ intel_sdvo_select_i2c_bus(struct drm_i91
sdvo->i2c = intel_gmbus_get_adapter(dev_priv, pin);
- /* With gmbus we should be able to drive sdvo i2c at 2MHz, but somehow
+ /*
+ * With gmbus we should be able to drive sdvo i2c at 2MHz, but somehow
* our code totally fails once we start using gmbus. Hence fall back to
- * bit banging for now. */
+ * bit banging for now.
+ */
intel_gmbus_force_bit(sdvo->i2c, true);
}
@@ -2379,7 +2399,8 @@ intel_sdvo_get_slave_addr(struct drm_i91
if (my_mapping->slave_addr)
return my_mapping->slave_addr;
- /* If the BIOS only described a different SDVO device, use the
+ /*
+ * If the BIOS only described a different SDVO device, use the
* address that it isn't using.
*/
if (other_mapping->slave_addr) {
@@ -2389,7 +2410,8 @@ intel_sdvo_get_slave_addr(struct drm_i91
return 0x70;
}
- /* No SDVO device info is found for another DVO port,
+ /*
+ * No SDVO device info is found for another DVO port,
* so use mapping assumption we had before BIOS parsing.
*/
if (sdvo->port == PORT_B)
@@ -2490,7 +2512,8 @@ intel_sdvo_dvi_init(struct intel_sdvo *i
if (intel_sdvo_get_hotplug_support(intel_sdvo) &
intel_sdvo_connector->output_flag) {
intel_sdvo->hotplug_active |= intel_sdvo_connector->output_flag;
- /* Some SDVO devices have one-shot hotplug interrupts.
+ /*
+ * Some SDVO devices have one-shot hotplug interrupts.
* Ensure that they get re-enabled when an interrupt happens.
*/
intel_encoder->hot_plug = intel_sdvo_enable_hotplug;
@@ -2789,7 +2812,7 @@ intel_sdvo_create_enhance_property_tv(st
to_intel_sdvo_connector_state(conn_state);
uint16_t response, data_value[2];
- /* when horizontal overscan is supported, Add the left/right property */
+ /* when horizontal overscan is supported, Add the left/right property */
if (enhancements.overscan_h) {
if (!intel_sdvo_get_value(intel_sdvo,
SDVO_CMD_GET_MAX_OVERSCAN_H,
@@ -3074,7 +3097,8 @@ bool intel_sdvo_init(struct drm_i915_pri
goto err_output;
}
- /* Only enable the hotplug irq if we need it, to work around noisy
+ /*
+ * Only enable the hotplug irq if we need it, to work around noisy
* hotplug lines.
*/
if (intel_sdvo->hotplug_active) {