Re: [PATCH] arm64: dts: qcom: sdm845: Add Q6V5 MSS node

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Hi Doug,
Thanks for the review!

On 2018-12-14 03:47, Doug Anderson wrote:
Hi,

On Tue, Nov 27, 2018 at 12:58 AM Sibi Sankar <sibis@xxxxxxxxxxxxxx> wrote:

This patch adds Q6V5 MSS remoteproc node for SDM845 SoCs.

Signed-off-by: Sibi Sankar <sibis@xxxxxxxxxxxxxx>
---

The remoteproc mss node depends on the following bindings:
https://patchwork.kernel.org/patch/10490559/ - rpmhp dt bindings

This is an older version of the patch.  Now at v7 at
<https://patchwork.kernel.org/patch/10725801/>


https://patchwork.kernel.org/patch/10678301/ - AOP QMP dt bindings
https://patchwork.kernel.org/patch/10691215/ - mss power-domain dt bindings https://patchwork.kernel.org/patch/10691213/ - shutdown-ack dt bindings

It also depends on the mpss and mba memory regions and pdc reset node.
https://patchwork.kernel.org/patch/10662089/
https://patchwork.kernel.org/patch/10657325/

arch/arm64/boot/dts/qcom/sdm845.dtsi | 63 ++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index 58870273dbc9..df16ee464872 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -1095,6 +1095,69 @@
                        };
                };

+               remoteproc@4080000 {
+                       compatible = "qcom,sdm845-mss-pil";
+                       reg = <0x04080000 0x408>, <0x04180000 0x48>;

s/0x04080000/0x4080000 to appease the DT folks.


as you said in the other thread will leave the
padding untouched


+                       reg-names = "qdsp6", "rmb";
+
+                       interrupts-extended =
+ <&intc GIC_SPI 266 IRQ_TYPE_EDGE_RISING>, + <&modem_smp2p_in 0 IRQ_TYPE_EDGE_RISING>, + <&modem_smp2p_in 1 IRQ_TYPE_EDGE_RISING>, + <&modem_smp2p_in 2 IRQ_TYPE_EDGE_RISING>, + <&modem_smp2p_in 3 IRQ_TYPE_EDGE_RISING>, + <&modem_smp2p_in 7 IRQ_TYPE_EDGE_RISING>;
+
+                       interrupt-names = "wdog", "fatal", "ready",
+                                         "handover", "stop-ack",
+                                         "shutdown-ack";

nit: maybe remove blank line between "interrupts-extended" and
"interrupt-names".  Nice to keep -names close to the things they're
naming.


sure will do that.. I guess I'll have to remove
the blank line in clock-names as well


+                       clocks = <&gcc GCC_MSS_CFG_AHB_CLK>,
+                                <&gcc GCC_MSS_Q6_MEMNOC_AXI_CLK>,
+                                <&gcc GCC_BOOT_ROM_AHB_CLK>,
+                                <&gcc GCC_MSS_GPLL0_DIV_CLK_SRC>,
+                                <&gcc GCC_MSS_SNOC_AXI_CLK>,
+                                <&gcc GCC_MSS_MFAB_AXIS_CLK>,
+                                <&gcc GCC_PRNG_AHB_CLK>,
+                                <&rpmhcc RPMH_CXO_CLK>;
+
+ clock-names = "iface", "bus", "mem", "gpll0_mss", + "snoc_axi", "mnoc_axi", "prng", "xo";

Bindings list clock-names as "iface", "bus", "mem".  You have "iface",
"bus", "mem", "gpll0_mss", "snoc_axi", "mnoc_axi", "prng", "xo".  It
looks like these extra clocks were added in commit 231f67d1fb2f
("remoteproc: q6v5: Add support for mss remoteproc on SDM845") but you
forgot to update the bindings.  Looking in that patch I also see an
"axis2" which you seem to be missing.  Do you need it?


yes missed adding them..will add them in the next respin


+                       qcom,smem-states = <&modem_smp2p_out 0>;
+                       qcom,smem-state-names = "stop";
+
+                       resets = <&aoss_reset AOSS_CC_MSS_RESTART>,
+                                <&pdc_reset PDC_MODEM_SYNC_RESET>;
+                       reset-names = "mss_restart", "pdc_reset";
+
+                       qcom,halt-regs = <&tcsr_mutex_regs
+ 0x23000 0x25000 0x24000>;
+
+ power-domains = <&aoss_qmp_pd AOSS_QMP_LS_MODEM>,
+                                       <&rpmhpd SDM845_CX>,
+                                       <&rpmhpd SDM845_MX>,
+                                       <&rpmhpd SDM845_MSS>;
+                       power-domain-names = "aop", "cx", "mx", "mss";
+
+                       mba {
+                               memory-region = <&mba_region>;
+                       };
+
+                       mpss {
+                               memory-region = <&mpss_region>;
+                       };
+
+                       glink-edge {
+ interrupts = <GIC_SPI 449 IRQ_TYPE_EDGE_RISING>;
+                               label = "modem";
+                               qcom,remote-pid = <1>;

The "qcom,remote-pid" property isn't documented for "glink-edge".  Do
you need it?  ...if you do, please send a patch to update the
bindings.


yes glink seems to be missing the remote-pid..
I will add that as well in v2


-Doug

--
-- Sibi Sankar --
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project.



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