Re: [PATCH v2 1/6] ARM: dra762: hwmod: Add MCAN support

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On 30/05/18 17:50, Tony Lindgren wrote:
* Faiz Abbas <faiz_abbas@xxxxxx> [180530 14:12]:
From: Lokesh Vutla <lokeshvutla@xxxxxx>

Add MCAN hwmod data and register it for dra762 silicons.

Signed-off-by: Lokesh Vutla <lokeshvutla@xxxxxx>
Signed-off-by: Faiz Abbas <faiz_abbas@xxxxxx>
---
  arch/arm/mach-omap2/omap_hwmod_7xx_data.c | 32 +++++++++++++++++++++++
  1 file changed, 32 insertions(+)

diff --git a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
index 62352d1e6361..a2cd7f865a60 100644
--- a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
@@ -1355,6 +1355,29 @@ static struct omap_hwmod dra7xx_mailbox13_hwmod = {
  	},
  };
+/*
+ * 'mcan' class
+ *
+ */
+static struct omap_hwmod_class dra76x_mcan_hwmod_class = {
+	.name	= "mcan",
+};
+
+/* mcan */
+static struct omap_hwmod dra76x_mcan_hwmod = {
+	.name		= "mcan",
+	.class		= &dra76x_mcan_hwmod_class,
+	.clkdm_name	= "wkupaon_clkdm",
+	.main_clk	= "mcan_clk",
+	.prcm = {
+		.omap4 = {
+			.clkctrl_offs = DRA7XX_CM_WKUPAON_ADC_CLKCTRL_OFFSET,
+			.context_offs = DRA7XX_RM_WKUPAON_ADC_CONTEXT_OFFSET,
+			.modulemode   = MODULEMODE_SWCTRL,
+		},
+	},
+};

You should be now able to leave out at least the clkctrl_offs and modulemode
here. Please also check if leaving out clkdm_name and main_clk now works :)

@@ -3818,6 +3841,14 @@ static struct omap_hwmod_ocp_if dra7xx_l4_per2__epwmss2 = {
  	.user		= OCP_USER_MPU,
  };
+/* l3_main_1 -> mcan */
+static struct omap_hwmod_ocp_if dra76x_l3_main_1__mcan = {
+	.master		= &dra7xx_l3_main_1_hwmod,
+	.slave		= &dra76x_mcan_hwmod,
+	.clk		= "l3_iclk_div",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};

I think this we still need though for the clk. Tero, do you have any comments
on what all clocks can now be left out?

For the OCP if part, I think that is still needed until we switch over to full sysc driver. clkctrl_offs you probably also need because that is used for mapping the omap_hwmod against a specific clkctrl clock. Those can be only removed once we are done with hwmod (or figure out some other way to assign the clkctrl clock to a hwmod.)

-Tero
--
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