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drivers: mipi_dsi: add support for mipi_dsi_detach to dsi_mcux_2l

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Add support for mipi_dsi_detach API to dsi_mcux_2l driver, and
update RT5xx SOC interface to enable halting clocks for the MIPI DPHY.

Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
This commit is contained in:
Daniel DeGrasse 2023-11-08 16:17:14 -06:00 committed by Carles Cufí
parent 4cc12cb112
commit 5854821b65
3 changed files with 34 additions and 2 deletions
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23
drivers/mipi_dsi/dsi_mcux_2l.c
View file

@ -227,6 +227,8 @@ static int dsi_mcux_attach(const struct device *dev,
dsi_config.autoInsertEoTp = config->auto_insert_eotp;
dsi_config.enableNonContinuousHsClk = config->noncontinuous_hs_clk;
imxrt_pre_init_display_interface();
/* Init the DSI module. */
DSI_Init(config->base, &dsi_config);
@ -344,6 +346,24 @@ static int dsi_mcux_attach(const struct device *dev,
return 0;
}
static int dsi_mcux_detach(const struct device *dev, uint8_t channel,
const struct mipi_dsi_device *mdev)
{
const struct mcux_mipi_dsi_config *config = dev->config;
/* Enable DPHY auto power down */
DSI_DeinitDphy(config->base);
/* Fully power off DPHY */
config->base->PD_DPHY = 0x1;
/* Deinit MIPI */
DSI_Deinit(config->base);
/* Call IMX RT clock function to gate clocks and power at SOC level */
imxrt_deinit_display_interface();
return 0;
}
static ssize_t dsi_mcux_transfer(const struct device *dev, uint8_t channel,
struct mipi_dsi_msg *msg)
{
@ -434,6 +454,7 @@ static ssize_t dsi_mcux_transfer(const struct device *dev, uint8_t channel,
static struct mipi_dsi_driver_api dsi_mcux_api = {
.attach = dsi_mcux_attach,
.detach = dsi_mcux_detach,
.transfer = dsi_mcux_transfer,
};
@ -449,8 +470,6 @@ static int mcux_mipi_dsi_init(const struct device *dev)
k_sem_init(&data->transfer_sem, 0, 1);
imxrt_pre_init_display_interface();
if (!device_is_ready(config->bit_clk_dev) ||
!device_is_ready(config->esc_clk_dev) ||
!device_is_ready(config->pixel_clk_dev)) {

11
soc/arm/nxp_imx/rt5xx/soc.c
View file

@ -473,6 +473,17 @@ void __weak imxrt_post_init_display_interface(void)
/* Deassert MIPI DPHY reset. */
RESET_ClearPeripheralReset(kMIPI_DSI_PHY_RST_SHIFT_RSTn);
}
void __weak imxrt_deinit_display_interface(void)
{
/* Assert MIPI DPHY and DSI reset */
RESET_SetPeripheralReset(kMIPI_DSI_PHY_RST_SHIFT_RSTn);
RESET_SetPeripheralReset(kMIPI_DSI_CTRL_RST_SHIFT_RSTn);
/* Remove clock from DPHY */
CLOCK_AttachClk(kNONE_to_MIPI_DPHY_CLK);
}
#endif
/**

2
soc/arm/nxp_imx/rt5xx/soc.h
View file

@ -80,6 +80,8 @@
void imxrt_pre_init_display_interface(void);
void imxrt_post_init_display_interface(void);
void imxrt_deinit_display_interface(void);
#endif
#endif