kernel/include/linux/soc/samsung/exynos-chipid.h, branch linux-5.10.yHosts the 0x221E linux distro kernel.https://universe.0xinfinity.dev/distro/kernel/atom?h=linux-5.10.y2025-05-02T05:41:12Zsoc: samsung: exynos-chipid: Pass revision reg offsets2025-05-02T05:41:12ZSam Protsenkosemen.protsenko@linaro.org2021-10-14T13:35:06Zurn:sha1:373734a34270c4999c731cad1156076c21781410
[ Upstream commit c072c4ef7ef09e1d6470c48cf52570487589b76a ]
Old Exynos SoCs have both Product ID and Revision ID in one single
register, while new SoCs tend to have two separate registers for those
IDs. Implement handling of both cases by passing Revision ID register
offsets in driver data.
Previously existing macros for Exynos4210 (removed in this patch) were
incorrect:
#define EXYNOS_SUBREV_MASK (0xf << 4)
#define EXYNOS_MAINREV_MASK (0xf << 0)
Actual format of PRO_ID register in Exynos4210 (offset 0x0):
[31:12] Product ID
[9:8] Package information
[7:4] Main Revision Number
[3:0] Sub Revision Number
This patch doesn't change the behavior on existing platforms, so
'/sys/devices/soc0/revision' will show the same string as before.
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Tested-by: Henrik Grimler <henrik@grimler.se>
Link: https://lore.kernel.org/r/20211014133508.1210-1-semen.protsenko@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Stable-dep-of: c8222ef6cf29 ("soc: samsung: exynos-chipid: Add NULL pointer check in exynos_chipid_probe()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
soc: samsung: chipid: Convert exynos-chipid driver to use the regmap API2019-08-15T18:25:25ZSylwester Nawrockis.nawrocki@samsung.com2019-08-13T15:08:20Zurn:sha1:40d8aff614f71ab3cab20785b4f213e3802d4e87
Convert the driver to use regmap API in order to allow other
drivers, like ASV, to access the CHIPID registers.
Add definition of selected CHIPID register offsets and register bit
fields for Exynos5422 SoC.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>