Unverified Commit 022bd9c5 authored by Xianwei Zhao's avatar Xianwei Zhao Committed by Mark Brown
Browse files

spi: meson-spicc: set SPI clock flag CLK_SET_RATE_PARENT 



Add SPI clock flag CLK_SET_RATE_PARENT for using pclk as parent clock.
This gives SPI more flexibility in frequency selection.

Signed-off-by: default avatarXianwei Zhao <xianwei.zhao@amlogic.com>
Signed-off-by: default avatarSunny Luo <sunny.luo@amlogic.com>
Link: https://lore.kernel.org/r/20240524-spi_pclk_setparent-v1-1-99e0ce70b66f@amlogic.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent d4ea1d50

drivers/spi/spi-meson-spicc.c

+10 −6
Original line number Diff line number Diff line
@@ -644,11 +644,13 @@ static int meson_spicc_pow2_clk_init(struct meson_spicc_device *spicc) 
	snprintf(name, sizeof(name), "%s#pow2_fixed_div", dev_name(dev));

	init.name = name;

	init.ops = &clk_fixed_factor_ops;

	init.flags = 0;

	if (spicc->data->has_pclk)

	if (spicc->data->has_pclk) {

		init.flags = CLK_SET_RATE_PARENT;

		parent_data[0].hw = __clk_get_hw(spicc->pclk);

	else

	} else {

		init.flags = 0;

		parent_data[0].hw = __clk_get_hw(spicc->core);

	}

	init.num_parents = 1;



	pow2_fixed_div->mult = 1,
@@ -708,11 +710,13 @@ static int meson_spicc_enh_clk_init(struct meson_spicc_device *spicc) 
	snprintf(name, sizeof(name), "%s#enh_fixed_div", dev_name(dev));

	init.name = name;

	init.ops = &clk_fixed_factor_ops;

	init.flags = 0;

	if (spicc->data->has_pclk)

	if (spicc->data->has_pclk) {

		init.flags = CLK_SET_RATE_PARENT;

		parent_data[0].hw = __clk_get_hw(spicc->pclk);

	else

	} else {

		init.flags = 0;

		parent_data[0].hw = __clk_get_hw(spicc->core);

	}

	init.num_parents = 1;



	enh_fixed_div->mult = 1,