linux-kernel - [PATCH 11/16] ARM: rockchip: use generic API for enabling SCU

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Date:   Mon, 14 Nov 2016 10:32:06 +0530
From:   Pankaj Dubey <pankaj.dubey@...sung.com>
To:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     rmk+kernel@...linux.org.uk, arnd@...db.de, horms@...ge.net.au,
        magnus.damm@...il.com, geert+renesas@...der.be, vireshk@...nel.org,
        shiraz.linux.kernel@...il.com, krzk@...nel.org,
        thomas.ab@...sung.com, Pankaj Dubey <pankaj.dubey@...sung.com>,
        Heiko Stuebner <heiko@...ech.de>,
        linux-rockchip@...ts.infradead.org
Subject: [PATCH 11/16] ARM: rockchip: use generic API for enabling SCU

Now as we have of_scu_enable which takes care of mapping
scu base from DT, lets use it.

CC: Heiko Stuebner <heiko@...ech.de>
CC: linux-rockchip@...ts.infradead.org
Signed-off-by: Pankaj Dubey <pankaj.dubey@...sung.com>
---
 arch/arm/mach-rockchip/platsmp.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/arch/arm/mach-rockchip/platsmp.c b/arch/arm/mach-rockchip/platsmp.c
index 4d827a0..31169cf 100644
--- a/arch/arm/mach-rockchip/platsmp.c
+++ b/arch/arm/mach-rockchip/platsmp.c
@@ -282,21 +282,15 @@ static void __init rockchip_smp_prepare_cpus(unsigned int max_cpus)
 	if (has_pmu && rockchip_smp_prepare_pmu())
 		return;
 
-	if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9) {
+	if (scu_a9_has_base()) {
 		if (rockchip_smp_prepare_sram(node))
 			return;
 
 		/* enable the SCU power domain */
 		pmu_set_power_domain(PMU_PWRDN_SCU, true);
 
-		node = of_find_compatible_node(NULL, NULL, "arm,cortex-a9-scu");
-		if (!node) {
-			pr_err("%s: missing scu\n", __func__);
-			return;
-		}
-
-		scu_base_addr = of_iomap(node, 0);
-		if (!scu_base_addr) {
+		scu_base_addr = of_scu_get_base();
+		if (IS_ERR(scu_base_addr)) {
 			pr_err("%s: could not map scu registers\n", __func__);
 			return;
 		}
-- 
2.7.4