linux-kernel - [PATCH 07/10] clk: mmp2: Check for MMP3

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Date:   Wed, 19 Feb 2020 08:33:50 +0100
From:   Lubomir Rintel <lkundrak@...sk>
To:     Stephen Boyd <sboyd@...nel.org>
Cc:     Michael Turquette <mturquette@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Lubomir Rintel <lkundrak@...sk>
Subject: [PATCH 07/10] clk: mmp2: Check for MMP3

The MMP3's are similar enough to MMP2, but there are differencies, such
are more clocks available on the newer model. We want to tell which
platform are we on.

Signed-off-by: Lubomir Rintel <lkundrak@...sk>
---
 drivers/clk/mmp/clk-of-mmp2.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/clk/mmp/clk-of-mmp2.c b/drivers/clk/mmp/clk-of-mmp2.c
index 251d8d0e78abb..7594a8280b93a 100644
--- a/drivers/clk/mmp/clk-of-mmp2.c
+++ b/drivers/clk/mmp/clk-of-mmp2.c
@@ -62,8 +62,14 @@
 #define MPMU_UART_PLL	0x14
 #define MPMU_PLL2_CR	0x34
 
+enum mmp2_clk_model {
+	CLK_MODEL_MMP2,
+	CLK_MODEL_MMP3,
+};
+
 struct mmp2_clk_unit {
 	struct mmp_clk_unit unit;
+	enum mmp2_clk_model model;
 	void __iomem *mpmu_base;
 	void __iomem *apmu_base;
 	void __iomem *apbc_base;
@@ -326,6 +332,11 @@ static void __init mmp2_clk_init(struct device_node *np)
 	if (!pxa_unit)
 		return;
 
+	if (of_device_is_compatible(np, "marvell,mmp3-clock"))
+		pxa_unit->model = CLK_MODEL_MMP3;
+	else
+		pxa_unit->model = CLK_MODEL_MMP2;
+
 	pxa_unit->mpmu_base = of_iomap(np, 0);
 	if (!pxa_unit->mpmu_base) {
 		pr_err("failed to map mpmu registers\n");
@@ -365,3 +376,4 @@ static void __init mmp2_clk_init(struct device_node *np)
 }
 
 CLK_OF_DECLARE(mmp2_clk, "marvell,mmp2-clock", mmp2_clk_init);
+CLK_OF_DECLARE(mmp3_clk, "marvell,mmp3-clock", mmp2_clk_init);
-- 
2.24.1