On 03/22/2017 02:53 PM, Jose Abreu wrote: > Hi Neil, > > > On 21-03-2017 15:12, Neil Armstrong wrote: >> From: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx> >> >> In preparation for adding PHY operations to handle RX SENSE and HPD, >> group all the PHY interrupt setup code in a single location and extract >> it to a separate function. >> >> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx> >> Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx> > > Reviewed-by: Jose Abreu <joabreu@xxxxxxxxxxxx> > > Maybe if you submit a next version we could get rid of > "dw_hdmi_fb_registered" totally and move the remaining setup code > to a new "dw_hdmi_setup_i2c" function. Ok I'll do this, Neil > > Best regards, > Jose Miguel Abreu > >> --- >> drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 50 ++++++++++++++----------------- >> 1 file changed, 23 insertions(+), 27 deletions(-) >> >> diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c >> index af93f7a..f82750a 100644 >> --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c >> +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c >> @@ -1559,7 +1559,7 @@ static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct drm_display_mode *mode) >> } >> >> /* Wait until we are registered to enable interrupts */ >> -static int dw_hdmi_fb_registered(struct dw_hdmi *hdmi) >> +static void dw_hdmi_fb_registered(struct dw_hdmi *hdmi) >> { >> hdmi_writeb(hdmi, HDMI_PHY_I2CM_INT_ADDR_DONE_POL, >> HDMI_PHY_I2CM_INT_ADDR); >> @@ -1567,15 +1567,6 @@ static int dw_hdmi_fb_registered(struct dw_hdmi *hdmi) >> hdmi_writeb(hdmi, HDMI_PHY_I2CM_CTLINT_ADDR_NAC_POL | >> HDMI_PHY_I2CM_CTLINT_ADDR_ARBITRATION_POL, >> HDMI_PHY_I2CM_CTLINT_ADDR); >> - >> - /* enable cable hot plug irq */ >> - hdmi_writeb(hdmi, hdmi->phy_mask, HDMI_PHY_MASK0); >> - >> - /* Clear Hotplug interrupts */ >> - hdmi_writeb(hdmi, HDMI_IH_PHY_STAT0_HPD | HDMI_IH_PHY_STAT0_RX_SENSE, >> - HDMI_IH_PHY_STAT0); >> - >> - return 0; >> } >> >> static void initialize_hdmi_ih_mutes(struct dw_hdmi *hdmi) >> @@ -1693,6 +1684,26 @@ static void dw_hdmi_update_phy_mask(struct dw_hdmi *hdmi) >> hdmi_writeb(hdmi, hdmi->phy_mask, HDMI_PHY_MASK0); >> } >> >> +static void dw_hdmi_phy_setup_hpd(struct dw_hdmi *hdmi) >> +{ >> + /* >> + * Configure the PHY RX SENSE and HPD interrupts polarities and clear >> + * any pending interrupt. >> + */ >> + hdmi_writeb(hdmi, HDMI_PHY_HPD | HDMI_PHY_RX_SENSE, HDMI_PHY_POL0); >> + hdmi_writeb(hdmi, HDMI_IH_PHY_STAT0_HPD | HDMI_IH_PHY_STAT0_RX_SENSE, >> + HDMI_IH_PHY_STAT0); >> + >> + /* Enable cable hot plug irq. */ >> + hdmi_writeb(hdmi, hdmi->phy_mask, HDMI_PHY_MASK0); >> + >> + /* Clear and unmute interrupts. */ >> + hdmi_writeb(hdmi, HDMI_IH_PHY_STAT0_HPD | HDMI_IH_PHY_STAT0_RX_SENSE, >> + HDMI_IH_PHY_STAT0); >> + hdmi_writeb(hdmi, ~(HDMI_IH_PHY_STAT0_HPD | HDMI_IH_PHY_STAT0_RX_SENSE), >> + HDMI_IH_MUTE_PHY_STAT0); >> +} >> + >> static enum drm_connector_status >> dw_hdmi_connector_detect(struct drm_connector *connector, bool force) >> { >> @@ -2204,29 +2215,14 @@ static int dw_hdmi_detect_phy(struct dw_hdmi *hdmi) >> hdmi->ddc = NULL; >> } >> >> - /* >> - * Configure registers related to HDMI interrupt >> - * generation before registering IRQ. >> - */ >> - hdmi_writeb(hdmi, HDMI_PHY_HPD | HDMI_PHY_RX_SENSE, HDMI_PHY_POL0); >> - >> - /* Clear Hotplug interrupts */ >> - hdmi_writeb(hdmi, HDMI_IH_PHY_STAT0_HPD | HDMI_IH_PHY_STAT0_RX_SENSE, >> - HDMI_IH_PHY_STAT0); >> - >> hdmi->bridge.driver_private = hdmi; >> hdmi->bridge.funcs = &dw_hdmi_bridge_funcs; >> #ifdef CONFIG_OF >> hdmi->bridge.of_node = pdev->dev.of_node; >> #endif >> >> - ret = dw_hdmi_fb_registered(hdmi); >> - if (ret) >> - goto err_iahb; >> - >> - /* Unmute interrupts */ >> - hdmi_writeb(hdmi, ~(HDMI_IH_PHY_STAT0_HPD | HDMI_IH_PHY_STAT0_RX_SENSE), >> - HDMI_IH_MUTE_PHY_STAT0); >> + dw_hdmi_fb_registered(hdmi); >> + dw_hdmi_phy_setup_hpd(hdmi); >> >> memset(&pdevinfo, 0, sizeof(pdevinfo)); >> pdevinfo.parent = dev; > _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel