[PATCH 0/5] Fix i.MXRT1050 hang on lcdif init and improve DT for mxsfb

Giulio Benetti
2021-04-12T23:03:30Z

This patchset fixes u-boot hang on i.MXRT1050 while setting lcdif in mxsfb
driver. There are 2 gates to be enabled to initialize mxsfb so let's
introduce the missing gate as a clock and rename "per" clock to "pix" clock
since in the other .dts files using *-lcdif "pix" is used.

This patchset add also "disp_axi" clock enabling in mxsfb that should make
able to every i.MX SoC with lcdif using DT. I didn't test it other than
i.MXRT1050 since I don't have the boards. If someone can test it it would
be great. Note that i.MX23/28 should fail using DT instead because they
don't specify any clock-names in their dts.

Giulio Benetti (5):
video: mxsfb: add enabling of "axi" clock other than "per" clock
video: mxsfb: add enabling of "disp_axi" clock
clk: imx: clk-imxrt1050: introduce LCDIF_PIX and rename LCDIF to
LCDIF_APB
ARM: dts: imxrt1050: move lcdif assigned clock to dtsi
ARM: dts: imxrt1050: set lcdif clocks according to mxsfb driver

arch/arm/dts/imxrt1050-evk.dts | 3 --
arch/arm/dts/imxrt1050.dtsi | 7 ++--
drivers/clk/imx/clk-imxrt1050.c | 6 ++--
drivers/video/mxsfb.c | 36 +++++++++++++++++----
include/dt-bindings/clock/imxrt1050-clock.h | 5 +--
5 files changed, 41 insertions(+), 16 deletions(-)

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2.25.1