diff options
Diffstat (limited to 'drivers/gpu/drm/sun4i/sun4i_tcon.c')
| -rw-r--r-- | drivers/gpu/drm/sun4i/sun4i_tcon.c | 87 |
1 files changed, 41 insertions, 46 deletions
diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c index 9b5b21ad8378..964cf22a1ced 100644 --- a/drivers/gpu/drm/sun4i/sun4i_tcon.c +++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c @@ -35,66 +35,61 @@ #include "sun4i_tcon.h" #include "sunxi_engine.h" -void sun4i_tcon_disable(struct sun4i_tcon *tcon) +static void sun4i_tcon_channel_set_status(struct sun4i_tcon *tcon, int channel, + bool enabled) { - DRM_DEBUG_DRIVER("Disabling TCON\n"); + struct clk *clk; - /* Disable the TCON */ - regmap_update_bits(tcon->regs, SUN4I_TCON_GCTL_REG, - SUN4I_TCON_GCTL_TCON_ENABLE, 0); -} -EXPORT_SYMBOL(sun4i_tcon_disable); - -void sun4i_tcon_enable(struct sun4i_tcon *tcon) -{ - DRM_DEBUG_DRIVER("Enabling TCON\n"); - - /* Enable the TCON */ - regmap_update_bits(tcon->regs, SUN4I_TCON_GCTL_REG, - SUN4I_TCON_GCTL_TCON_ENABLE, - SUN4I_TCON_GCTL_TCON_ENABLE); -} -EXPORT_SYMBOL(sun4i_tcon_enable); - -void sun4i_tcon_channel_disable(struct sun4i_tcon *tcon, int channel) -{ - DRM_DEBUG_DRIVER("Disabling TCON channel %d\n", channel); - - /* Disable the TCON's channel */ - if (channel == 0) { + switch (channel) { + case 0: regmap_update_bits(tcon->regs, SUN4I_TCON0_CTL_REG, - SUN4I_TCON0_CTL_TCON_ENABLE, 0); - clk_disable_unprepare(tcon->dclk); + SUN4I_TCON0_CTL_TCON_ENABLE, + enabled ? SUN4I_TCON0_CTL_TCON_ENABLE : 0); + clk = tcon->dclk; + break; + case 1: + WARN_ON(!tcon->quirks->has_channel_1); + regmap_update_bits(tcon->regs, SUN4I_TCON1_CTL_REG, + SUN4I_TCON1_CTL_TCON_ENABLE, + enabled ? SUN4I_TCON1_CTL_TCON_ENABLE : 0); + clk = tcon->sclk1; + break; + default: + DRM_WARN("Unknown channel... doing nothing\n"); return; } - WARN_ON(!tcon->quirks->has_channel_1); - regmap_update_bits(tcon->regs, SUN4I_TCON1_CTL_REG, - SUN4I_TCON1_CTL_TCON_ENABLE, 0); - clk_disable_unprepare(tcon->sclk1); + if (enabled) + clk_prepare_enable(clk); + else + clk_disable_unprepare(clk); } -EXPORT_SYMBOL(sun4i_tcon_channel_disable); -void sun4i_tcon_channel_enable(struct sun4i_tcon *tcon, int channel) +void sun4i_tcon_set_status(struct sun4i_tcon *tcon, + const struct drm_encoder *encoder, + bool enabled) { - DRM_DEBUG_DRIVER("Enabling TCON channel %d\n", channel); + int channel; - /* Enable the TCON's channel */ - if (channel == 0) { - regmap_update_bits(tcon->regs, SUN4I_TCON0_CTL_REG, - SUN4I_TCON0_CTL_TCON_ENABLE, - SUN4I_TCON0_CTL_TCON_ENABLE); - clk_prepare_enable(tcon->dclk); + switch (encoder->encoder_type) { + case DRM_MODE_ENCODER_NONE: + channel = 0; + break; + case DRM_MODE_ENCODER_TMDS: + case DRM_MODE_ENCODER_TVDAC: + channel = 1; + break; + default: + DRM_DEBUG_DRIVER("Unknown encoder type, doing nothing...\n"); return; } - WARN_ON(!tcon->quirks->has_channel_1); - regmap_update_bits(tcon->regs, SUN4I_TCON1_CTL_REG, - SUN4I_TCON1_CTL_TCON_ENABLE, - SUN4I_TCON1_CTL_TCON_ENABLE); - clk_prepare_enable(tcon->sclk1); + regmap_update_bits(tcon->regs, SUN4I_TCON_GCTL_REG, + SUN4I_TCON_GCTL_TCON_ENABLE, + enabled ? SUN4I_TCON_GCTL_TCON_ENABLE : 0); + + sun4i_tcon_channel_set_status(tcon, channel, enabled); } -EXPORT_SYMBOL(sun4i_tcon_channel_enable); void sun4i_tcon_enable_vblank(struct sun4i_tcon *tcon, bool enable) { |