Commit 4e890b22 authored by Krzysztof Kozlowski's avatar Krzysztof Kozlowski
Browse files

memory: of: parse max-freq property 



Passing the memory timings maximum frequency as an unit address was
a workaround and instead 'max-freq' is preferred.  Look for 'max-freq'
first and then fallback to 'reg'.

Signed-off-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: default avatarAlim Akhtar <alim.ahtar@samsung.com>
Reviewed-by: default avatarDmitry Osipenko <digetx@gmail.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220206135807.211767-8-krzysztof.kozlowski@canonical.com
parent 42f94bb9

drivers/memory/of_memory.c

+4 −2
Original line number Original line Diff line number Diff line
@@ -212,7 +212,9 @@ static int of_lpddr3_do_get_timings(struct device_node *np, 
{

{

	int ret;

	int ret;





	/* The 'reg' param required since DT has changed, used as 'max-freq' */

	ret = of_property_read_u32(np, "max-freq", &tim->max_freq);

	if (ret)

		/* Deprecated way of passing max-freq as 'reg' */

		ret = of_property_read_u32(np, "reg", &tim->max_freq);

		ret = of_property_read_u32(np, "reg", &tim->max_freq);

	ret |= of_property_read_u32(np, "min-freq", &tim->min_freq);

	ret |= of_property_read_u32(np, "min-freq", &tim->min_freq);

	ret |= of_property_read_u32(np, "tRFC", &tim->tRFC);

	ret |= of_property_read_u32(np, "tRFC", &tim->tRFC);