linux-kernel - [PATCH v5 4/4] clk: zynqmp: Handle divider specific read only flag

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Date:   Thu, 24 Jun 2021 05:16:33 -0700
From:   Rajan Vaja <rajan.vaja@...inx.com>
To:     <mturquette@...libre.com>, <sboyd@...nel.org>,
        <michal.simek@...inx.com>, <lee.jones@...aro.org>,
        <kristo@...nel.org>, <quanyang.wang@...driver.com>
CC:     <linux-clk@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, Rajan Vaja <rajan.vaja@...inx.com>
Subject: [PATCH v5 4/4] clk: zynqmp: Handle divider specific read only flag

Add support for divider specific read only CCF flag
(CLK_DIVIDER_READ_ONLY).

Signed-off-by: Rajan Vaja <rajan.vaja@...inx.com>
---
 drivers/clk/zynqmp/divider.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/zynqmp/divider.c b/drivers/clk/zynqmp/divider.c
index c07423e03bc8..cb49281f9cf9 100644
--- a/drivers/clk/zynqmp/divider.c
+++ b/drivers/clk/zynqmp/divider.c
@@ -256,6 +256,11 @@ static const struct clk_ops zynqmp_clk_divider_ops = {
 	.set_rate = zynqmp_clk_divider_set_rate,
 };
 
+static const struct clk_ops zynqmp_clk_divider_ro_ops = {
+	.recalc_rate = zynqmp_clk_divider_recalc_rate,
+	.round_rate = zynqmp_clk_divider_round_rate,
+};
+
 /**
  * zynqmp_clk_get_max_divisor() - Get maximum supported divisor from firmware.
  * @clk_id:		Id of clock
@@ -334,7 +339,10 @@ struct clk_hw *zynqmp_clk_register_divider(const char *name,
 		return ERR_PTR(-ENOMEM);
 
 	init.name = name;
-	init.ops = &zynqmp_clk_divider_ops;
+	if (nodes->type_flag & CLK_DIVIDER_READ_ONLY)
+		init.ops = &zynqmp_clk_divider_ro_ops;
+	else
+		init.ops = &zynqmp_clk_divider_ops;
 
 	init.flags = zynqmp_clk_map_common_ccf_flags(nodes->flag);
 
-- 
2.32.0.93.g670b81a