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Message-Id: <20230509-ocmem-hwver-v2-1-8c8793a07dfc@z3ntu.xyz>
Date: Tue, 23 May 2023 22:32:52 +0200
From: Luca Weiss <luca@...tu.xyz>
To: ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
Andy Gross <agross@...nel.org>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konrad.dybcio@...aro.org>,
Brian Masney <masneyb@...tation.org>
Cc: linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
Luca Weiss <luca@...tu.xyz>
Subject: [PATCH v2] soc: qcom: ocmem: Add OCMEM hardware version print
It might be useful to know what hardware version of the OCMEM block the
SoC contains. Add a debug print for that.
Signed-off-by: Luca Weiss <luca@...tu.xyz>
---
This patch is depends on [0] but could also be applied in the other
order, if conflicts are resolved.
[0] https://lore.kernel.org/linux-arm-msm/20230506-msm8226-ocmem-v1-1-3e24e2724f01@z3ntu.xyz/
---
Changes in v2:
- Use FIELD_GET macros for getting correct bits from register (take
wording from mdp5: major, minor, step which hopefully is sort of
accurate)
- Link to v1: https://lore.kernel.org/r/20230509-ocmem-hwver-v1-1-b83ece3f2168@z3ntu.xyz
---
drivers/soc/qcom/ocmem.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/soc/qcom/ocmem.c b/drivers/soc/qcom/ocmem.c
index c3e78411c637..9f7c3348cbb9 100644
--- a/drivers/soc/qcom/ocmem.c
+++ b/drivers/soc/qcom/ocmem.c
@@ -76,6 +76,10 @@ struct ocmem {
#define OCMEM_REG_GFX_MPU_START 0x00001004
#define OCMEM_REG_GFX_MPU_END 0x00001008
+#define OCMEM_HW_VERSION_MAJOR(val) FIELD_GET(GENMASK(31, 28), val)
+#define OCMEM_HW_VERSION_MINOR(val) FIELD_GET(GENMASK(27, 16), val)
+#define OCMEM_HW_VERSION_STEP(val) FIELD_GET(GENMASK(15, 0), val)
+
#define OCMEM_HW_PROFILE_NUM_PORTS(val) FIELD_GET(0x0000000f, (val))
#define OCMEM_HW_PROFILE_NUM_MACROS(val) FIELD_GET(0x00003f00, (val))
@@ -355,6 +359,11 @@ static int ocmem_dev_probe(struct platform_device *pdev)
}
}
+ reg = ocmem_read(ocmem, OCMEM_REG_HW_VERSION);
+ dev_dbg(dev, "OCMEM hardware version: %ld.%ld.%ld\n",
+ OCMEM_HW_VERSION_MAJOR(reg), OCMEM_HW_VERSION_MINOR(reg),
+ OCMEM_HW_VERSION_STEP(reg));
+
reg = ocmem_read(ocmem, OCMEM_REG_HW_PROFILE);
ocmem->num_ports = OCMEM_HW_PROFILE_NUM_PORTS(reg);
ocmem->num_macros = OCMEM_HW_PROFILE_NUM_MACROS(reg);
---
base-commit: 8705151771af822ac794b44504cd72eebc423499
change-id: 20230509-ocmem-hwver-99bcb33b028b
Best regards,
--
Luca Weiss <luca@...tu.xyz>
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