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From:   Konrad Dybcio <konrad.dybcio@linaro.org>
Date:   Wed, 17 May 2023 23:14:25 +0200
Subject: [PATCH v3 12/17] media: venus: firmware: Correct IS_V6() checks
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Message-Id: <20230228-topic-venus-v3-12-6092ae43b58f@linaro.org>
References: <20230228-topic-venus-v3-0-6092ae43b58f@linaro.org>
In-Reply-To: <20230228-topic-venus-v3-0-6092ae43b58f@linaro.org>
To:     Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
        Vikash Garodia <quic_vgarodia@quicinc.com>,
        Andy Gross <agross@kernel.org>,
        Bjorn Andersson <andersson@kernel.org>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Dikshita Agarwal <dikshita@qti.qualcomm.com>,
        Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
        Mansur Alisha Shaik <mansur@codeaurora.org>,
        Jonathan Marek <jonathan@marek.ca>,
        Hans Verkuil <hans.verkuil@cisco.com>,
        Dikshita Agarwal <quic_dikshita@quicinc.com>
Cc:     Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
        Stanimir Varbanov <stanimir.varbanov@linaro.org>,
        linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        Marijn Suijten <marijn.suijten@somainline.org>,
        Konrad Dybcio <konrad.dybcio@linaro.org>,
        Vikash Garodia <quic_vgarodia@quicinc.com>
Precedence: bulk

Most of these checks should have checked for TZ presence (or well,
absence), as we shouldn't really be doing things that the black box
does for us on non-CrOS platforms.

The IS_V6() check in venus_shutdown_no_tz() should have checked
whether the core version is IRIS2_1 (so, SC7280). Correct that.

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/media/platform/qcom/venus/firmware.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/firmware.c b/drivers/media/platform/qcom/venus/firmware.c
index 572b649c56f3..ceb917f2e0d4 100644
--- a/drivers/media/platform/qcom/venus/firmware.c
+++ b/drivers/media/platform/qcom/venus/firmware.c
@@ -29,7 +29,11 @@ static void venus_reset_cpu(struct venus_core *core)
 	u32 fw_size = core->fw.mapped_mem_size;
 	void __iomem *wrapper_base;
 
-	if (IS_V6(core))
+	/*
+	 * When there's no Qualcomm TZ (like on Chromebooks), the OS is
+	 * responsible for bringing up the hardware instead.
+	 */
+	if (!core->use_tz)
 		wrapper_base = core->wrapper_tz_base;
 	else
 		wrapper_base = core->wrapper_base;
@@ -41,7 +45,7 @@ static void venus_reset_cpu(struct venus_core *core)
 	writel(fw_size, wrapper_base + WRAPPER_NONPIX_START_ADDR);
 	writel(fw_size, wrapper_base + WRAPPER_NONPIX_END_ADDR);
 
-	if (IS_V6(core)) {
+	if (!core->use_tz) {
 		/* Bring XTSS out of reset */
 		writel(0, wrapper_base + WRAPPER_TZ_XTSS_SW_RESET);
 	} else {
@@ -67,7 +71,7 @@ int venus_set_hw_state(struct venus_core *core, bool resume)
 	if (resume) {
 		venus_reset_cpu(core);
 	} else {
-		if (IS_V6(core))
+		if (!core->use_tz)
 			writel(WRAPPER_XTSS_SW_RESET_BIT,
 			       core->wrapper_tz_base + WRAPPER_TZ_XTSS_SW_RESET);
 		else
@@ -179,7 +183,7 @@ static int venus_shutdown_no_tz(struct venus_core *core)
 	void __iomem *wrapper_base = core->wrapper_base;
 	void __iomem *wrapper_tz_base = core->wrapper_tz_base;
 
-	if (IS_V6(core)) {
+	if (IS_IRIS2_1(core)) {
 		/* Assert the reset to XTSS */
 		reg = readl(wrapper_tz_base + WRAPPER_TZ_XTSS_SW_RESET);
 		reg |= WRAPPER_XTSS_SW_RESET_BIT;

-- 
2.40.1