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Date: Mon, 20 Apr 2020 21:07:44 +0200
From: Patrik Jakobsson <patrik.r.jakobsson@...il.com>
To: Souptick Joarder <jrdr.linux@...il.com>
Cc: David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>,
dri-devel <dri-devel@...ts.freedesktop.org>,
linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drm/gma500: Remove dead code
On Mon, Apr 20, 2020 at 8:04 PM Souptick Joarder <jrdr.linux@...il.com> wrote:
>
> These are dead code since 3.7. If there is no plan to use them further,
> these can be removed forever.
Thanks. Will apply to drm-misc-next.
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@...il.com>
>
> Signed-off-by: Souptick Joarder <jrdr.linux@...il.com>
> ---
> drivers/gpu/drm/gma500/cdv_intel_dp.c | 31 +--------
> drivers/gpu/drm/gma500/cdv_intel_lvds.c | 83 -----------------------
> drivers/gpu/drm/gma500/mdfld_intel_display.c | 31 ---------
> drivers/gpu/drm/gma500/psb_intel_sdvo.c | 99 ----------------------------
> 4 files changed, 1 insertion(+), 243 deletions(-)
>
> diff --git a/drivers/gpu/drm/gma500/cdv_intel_dp.c b/drivers/gpu/drm/gma500/cdv_intel_dp.c
> index 5772b2d..a9ed372 100644
> --- a/drivers/gpu/drm/gma500/cdv_intel_dp.c
> +++ b/drivers/gpu/drm/gma500/cdv_intel_dp.c
> @@ -1271,37 +1271,8 @@ static void cdv_intel_dp_commit(struct drm_encoder *encoder)
> return ((l >> s) & 3) << DP_TRAIN_PRE_EMPHASIS_SHIFT;
> }
>
> -
> -#if 0
> -static char *voltage_names[] = {
> - "0.4V", "0.6V", "0.8V", "1.2V"
> -};
> -static char *pre_emph_names[] = {
> - "0dB", "3.5dB", "6dB", "9.5dB"
> -};
> -static char *link_train_names[] = {
> - "pattern 1", "pattern 2", "idle", "off"
> -};
> -#endif
> -
> #define CDV_DP_VOLTAGE_MAX DP_TRAIN_VOLTAGE_SWING_LEVEL_3
> -/*
> -static uint8_t
> -cdv_intel_dp_pre_emphasis_max(uint8_t voltage_swing)
> -{
> - switch (voltage_swing & DP_TRAIN_VOLTAGE_SWING_MASK) {
> - case DP_TRAIN_VOLTAGE_SWING_400:
> - return DP_TRAIN_PRE_EMPHASIS_6;
> - case DP_TRAIN_VOLTAGE_SWING_600:
> - return DP_TRAIN_PRE_EMPHASIS_6;
> - case DP_TRAIN_VOLTAGE_SWING_800:
> - return DP_TRAIN_PRE_EMPHASIS_3_5;
> - case DP_TRAIN_VOLTAGE_SWING_1200:
> - default:
> - return DP_TRAIN_PRE_EMPHASIS_0;
> - }
> -}
> -*/
> +
> static void
> cdv_intel_get_adjust_train(struct gma_encoder *encoder)
> {
> diff --git a/drivers/gpu/drm/gma500/cdv_intel_lvds.c b/drivers/gpu/drm/gma500/cdv_intel_lvds.c
> index ea0a5d9..dffb86e 100644
> --- a/drivers/gpu/drm/gma500/cdv_intel_lvds.c
> +++ b/drivers/gpu/drm/gma500/cdv_intel_lvds.c
> @@ -72,89 +72,6 @@ static u32 cdv_intel_lvds_get_max_backlight(struct drm_device *dev)
> return retval;
> }
>
> -#if 0
> -/*
> - * Set LVDS backlight level by I2C command
> - */
> -static int cdv_lvds_i2c_set_brightness(struct drm_device *dev,
> - unsigned int level)
> -{
> - struct drm_psb_private *dev_priv = dev->dev_private;
> - struct psb_intel_i2c_chan *lvds_i2c_bus = dev_priv->lvds_i2c_bus;
> - u8 out_buf[2];
> - unsigned int blc_i2c_brightness;
> -
> - struct i2c_msg msgs[] = {
> - {
> - .addr = lvds_i2c_bus->slave_addr,
> - .flags = 0,
> - .len = 2,
> - .buf = out_buf,
> - }
> - };
> -
> - blc_i2c_brightness = BRIGHTNESS_MASK & ((unsigned int)level *
> - BRIGHTNESS_MASK /
> - BRIGHTNESS_MAX_LEVEL);
> -
> - if (dev_priv->lvds_bl->pol == BLC_POLARITY_INVERSE)
> - blc_i2c_brightness = BRIGHTNESS_MASK - blc_i2c_brightness;
> -
> - out_buf[0] = dev_priv->lvds_bl->brightnesscmd;
> - out_buf[1] = (u8)blc_i2c_brightness;
> -
> - if (i2c_transfer(&lvds_i2c_bus->adapter, msgs, 1) == 1)
> - return 0;
> -
> - DRM_ERROR("I2C transfer error\n");
> - return -1;
> -}
> -
> -
> -static int cdv_lvds_pwm_set_brightness(struct drm_device *dev, int level)
> -{
> - struct drm_psb_private *dev_priv = dev->dev_private;
> -
> - u32 max_pwm_blc;
> - u32 blc_pwm_duty_cycle;
> -
> - max_pwm_blc = cdv_intel_lvds_get_max_backlight(dev);
> -
> - /*BLC_PWM_CTL Should be initiated while backlight device init*/
> - BUG_ON((max_pwm_blc & PSB_BLC_MAX_PWM_REG_FREQ) == 0);
> -
> - blc_pwm_duty_cycle = level * max_pwm_blc / BRIGHTNESS_MAX_LEVEL;
> -
> - if (dev_priv->lvds_bl->pol == BLC_POLARITY_INVERSE)
> - blc_pwm_duty_cycle = max_pwm_blc - blc_pwm_duty_cycle;
> -
> - blc_pwm_duty_cycle &= PSB_BACKLIGHT_PWM_POLARITY_BIT_CLEAR;
> - REG_WRITE(BLC_PWM_CTL,
> - (max_pwm_blc << PSB_BACKLIGHT_PWM_CTL_SHIFT) |
> - (blc_pwm_duty_cycle));
> -
> - return 0;
> -}
> -
> -/*
> - * Set LVDS backlight level either by I2C or PWM
> - */
> -void cdv_intel_lvds_set_brightness(struct drm_device *dev, int level)
> -{
> - struct drm_psb_private *dev_priv = dev->dev_private;
> -
> - if (!dev_priv->lvds_bl) {
> - DRM_ERROR("NO LVDS Backlight Info\n");
> - return;
> - }
> -
> - if (dev_priv->lvds_bl->type == BLC_I2C_TYPE)
> - cdv_lvds_i2c_set_brightness(dev, level);
> - else
> - cdv_lvds_pwm_set_brightness(dev, level);
> -}
> -#endif
> -
> /**
> * Sets the backlight level.
> *
> diff --git a/drivers/gpu/drm/gma500/mdfld_intel_display.c b/drivers/gpu/drm/gma500/mdfld_intel_display.c
> index 4fff110..aae2d35 100644
> --- a/drivers/gpu/drm/gma500/mdfld_intel_display.c
> +++ b/drivers/gpu/drm/gma500/mdfld_intel_display.c
> @@ -658,16 +658,6 @@ static int mdfld_crtc_mode_set(struct drm_crtc *crtc,
>
> dev_dbg(dev->dev, "pipe = 0x%x\n", pipe);
>
> -#if 0
> - if (pipe == 1) {
> - if (!gma_power_begin(dev, true))
> - return 0;
> - android_hdmi_crtc_mode_set(crtc, mode, adjusted_mode,
> - x, y, old_fb);
> - goto mrst_crtc_mode_set_exit;
> - }
> -#endif
> -
> ret = check_fb(crtc->primary->fb);
> if (ret)
> return ret;
> @@ -918,14 +908,6 @@ static int mdfld_crtc_mode_set(struct drm_crtc *crtc,
> }
> dpll = 0;
>
> -#if 0 /* FIXME revisit later */
> - if (ksel == KSEL_CRYSTAL_19 || ksel == KSEL_BYPASS_19 ||
> - ksel == KSEL_BYPASS_25)
> - dpll &= ~MDFLD_INPUT_REF_SEL;
> - else if (ksel == KSEL_BYPASS_83_100)
> - dpll |= MDFLD_INPUT_REF_SEL;
> -#endif /* FIXME revisit later */
> -
> if (is_hdmi)
> dpll |= MDFLD_VCO_SEL;
>
> @@ -935,20 +917,7 @@ static int mdfld_crtc_mode_set(struct drm_crtc *crtc,
> /* compute bitmask from p1 value */
> dpll |= (1 << (clock.p1 - 2)) << 17;
>
> -#if 0 /* 1080p30 & 720p */
> - dpll = 0x00050000;
> - fp = 0x000001be;
> -#endif
> -#if 0 /* 480p */
> - dpll = 0x02010000;
> - fp = 0x000000d2;
> -#endif
> } else {
> -#if 0 /*DBI_TPO_480x864*/
> - dpll = 0x00020000;
> - fp = 0x00000156;
> -#endif /* DBI_TPO_480x864 */ /* get from spec. */
> -
> dpll = 0x00800000;
> fp = 0x000000c1;
> }
> diff --git a/drivers/gpu/drm/gma500/psb_intel_sdvo.c b/drivers/gpu/drm/gma500/psb_intel_sdvo.c
> index 264d7ad..68fb3d7 100644
> --- a/drivers/gpu/drm/gma500/psb_intel_sdvo.c
> +++ b/drivers/gpu/drm/gma500/psb_intel_sdvo.c
> @@ -864,36 +864,6 @@ static bool psb_intel_sdvo_set_avi_infoframe(struct psb_intel_sdvo *psb_intel_sd
> DRM_INFO("HDMI is not supported yet");
>
> return false;
> -#if 0
> - struct dip_infoframe avi_if = {
> - .type = DIP_TYPE_AVI,
> - .ver = DIP_VERSION_AVI,
> - .len = DIP_LEN_AVI,
> - };
> - uint8_t tx_rate = SDVO_HBUF_TX_VSYNC;
> - uint8_t set_buf_index[2] = { 1, 0 };
> - uint64_t *data = (uint64_t *)&avi_if;
> - unsigned i;
> -
> - intel_dip_infoframe_csum(&avi_if);
> -
> - if (!psb_intel_sdvo_set_value(psb_intel_sdvo,
> - SDVO_CMD_SET_HBUF_INDEX,
> - set_buf_index, 2))
> - return false;
> -
> - for (i = 0; i < sizeof(avi_if); i += 8) {
> - if (!psb_intel_sdvo_set_value(psb_intel_sdvo,
> - SDVO_CMD_SET_HBUF_DATA,
> - data, 8))
> - return false;
> - data++;
> - }
> -
> - return psb_intel_sdvo_set_value(psb_intel_sdvo,
> - SDVO_CMD_SET_HBUF_TXRATE,
> - &tx_rate, 1);
> -#endif
> }
>
> static bool psb_intel_sdvo_set_tv_format(struct psb_intel_sdvo *psb_intel_sdvo)
> @@ -1227,75 +1197,6 @@ static bool psb_intel_sdvo_get_capabilities(struct psb_intel_sdvo *psb_intel_sdv
> return true;
> }
>
> -/* No use! */
> -#if 0
> -struct drm_connector* psb_intel_sdvo_find(struct drm_device *dev, int sdvoB)
> -{
> - struct drm_connector *connector = NULL;
> - struct psb_intel_sdvo *iout = NULL;
> - struct psb_intel_sdvo *sdvo;
> -
> - /* find the sdvo connector */
> - list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
> - iout = to_psb_intel_sdvo(connector);
> -
> - if (iout->type != INTEL_OUTPUT_SDVO)
> - continue;
> -
> - sdvo = iout->dev_priv;
> -
> - if (sdvo->sdvo_reg == SDVOB && sdvoB)
> - return connector;
> -
> - if (sdvo->sdvo_reg == SDVOC && !sdvoB)
> - return connector;
> -
> - }
> -
> - return NULL;
> -}
> -
> -int psb_intel_sdvo_supports_hotplug(struct drm_connector *connector)
> -{
> - u8 response[2];
> - u8 status;
> - struct psb_intel_sdvo *psb_intel_sdvo;
> - DRM_DEBUG_KMS("\n");
> -
> - if (!connector)
> - return 0;
> -
> - psb_intel_sdvo = to_psb_intel_sdvo(connector);
> -
> - return psb_intel_sdvo_get_value(psb_intel_sdvo, SDVO_CMD_GET_HOT_PLUG_SUPPORT,
> - &response, 2) && response[0];
> -}
> -
> -void psb_intel_sdvo_set_hotplug(struct drm_connector *connector, int on)
> -{
> - u8 response[2];
> - u8 status;
> - struct psb_intel_sdvo *psb_intel_sdvo = to_psb_intel_sdvo(connector);
> -
> - psb_intel_sdvo_write_cmd(psb_intel_sdvo, SDVO_CMD_GET_ACTIVE_HOT_PLUG, NULL, 0);
> - psb_intel_sdvo_read_response(psb_intel_sdvo, &response, 2);
> -
> - if (on) {
> - psb_intel_sdvo_write_cmd(psb_intel_sdvo, SDVO_CMD_GET_HOT_PLUG_SUPPORT, NULL, 0);
> - status = psb_intel_sdvo_read_response(psb_intel_sdvo, &response, 2);
> -
> - psb_intel_sdvo_write_cmd(psb_intel_sdvo, SDVO_CMD_SET_ACTIVE_HOT_PLUG, &response, 2);
> - } else {
> - response[0] = 0;
> - response[1] = 0;
> - psb_intel_sdvo_write_cmd(psb_intel_sdvo, SDVO_CMD_SET_ACTIVE_HOT_PLUG, &response, 2);
> - }
> -
> - psb_intel_sdvo_write_cmd(psb_intel_sdvo, SDVO_CMD_GET_ACTIVE_HOT_PLUG, NULL, 0);
> - psb_intel_sdvo_read_response(psb_intel_sdvo, &response, 2);
> -}
> -#endif
> -
> static bool
> psb_intel_sdvo_multifunc_encoder(struct psb_intel_sdvo *psb_intel_sdvo)
> {
> --
> 1.9.1
>
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