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drivers: mipi_dsi: dsi_mcux_2l add property to enable non-continuous hs clk

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Allows device tree to enable usage of the controller feature
where HS clock is disabled when not in use, which is good
for reducing power consumption if MIPI DSI is mostly idle.

Signed-off-by: Mike J. Chen <mjchen@google.com>
This commit is contained in:
Mike J. Chen 2023-10-11 17:57:25 -07:00 committed by Carles Cufí
parent 4844d015a4
commit 01aa800464
2 changed files with 9 additions and 0 deletions
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3
drivers/mipi_dsi/dsi_mcux_2l.c
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@ -28,6 +28,7 @@ struct mcux_mipi_dsi_config {
MIPI_DSI_HOST_Type *base;
dsi_dpi_config_t dpi_config;
bool auto_insert_eotp;
bool noncontinuous_hs_clk;
const struct device *bit_clk_dev;
clock_control_subsys_t bit_clk_subsys;
const struct device *esc_clk_dev;
@ -224,6 +225,7 @@ static int dsi_mcux_attach(const struct device *dev,
DSI_GetDefaultConfig(&dsi_config);
dsi_config.numLanes = mdev->data_lanes;
dsi_config.autoInsertEoTp = config->auto_insert_eotp;
dsi_config.enableNonContinuousHsClk = config->noncontinuous_hs_clk;
/* Init the DSI module. */
DSI_Init(config->base, &dsi_config);
@ -502,6 +504,7 @@ static int mcux_mipi_dsi_init(const struct device *dev)
(.irq_config_func = mipi_dsi_##n##_irq_config_func,)) \
.base = (MIPI_DSI_HOST_Type *)DT_INST_REG_ADDR(id), \
.auto_insert_eotp = DT_INST_PROP(id, autoinsert_eotp), \
.noncontinuous_hs_clk = DT_INST_PROP(id, noncontinuous_hs_clk), \
.dphy_ref_freq = DT_INST_PROP_OR(id, dphy_ref_frequency, 0), \
.bit_clk_dev = DEVICE_DT_GET(DT_INST_CLOCKS_CTLR_BY_NAME(id, dphy)), \
.bit_clk_subsys = \

6
dts/bindings/mipi-dsi/nxp,mipi-dsi-2l.yaml
View file

@ -70,3 +70,9 @@ properties:
description:
Maximum clock speed supported by the device, in Hz. Leave at default
if no DPHY PLL is present
noncontinuous-hs-clk:
type: boolean
description:
Enable non-contiuous high speed clock. Saves power but introduces latency
when transitioning to high speed mode.