ipq806x: add support for RPM clock controller

The patch #179 for RPM has initially been made for apq806x board. It has been modified to support ipq806x instead of apq8064.

Signed-off-by: Pavel Kubelun <be.dissent@gmail.com>

1 files changed, 53 insertions, 0 deletions

diff --git a/target/linux/ipq806x/patches-4.4/180-clk-qcom-Always-add-factor-clock-for-xo-clocks.patch b/target/linux/ipq806x/patches-4.4/180-clk-qcom-Always-add-factor-clock-for-xo-clocks.patch
new file mode 100644
index 0000000000..c8d83e9e57
--- /dev/null
+++ b/target/linux/ipq806x/patches-4.4/180-clk-qcom-Always-add-factor-clock-for-xo-clocks.patch
@@ -0,0 +1,53 @@
+From patchwork Wed Nov  2 15:56:58 2016
+Content-Type: text/plain; charset="utf-8"
+MIME-Version: 1.0
+Content-Transfer-Encoding: 7bit
+Subject: [v9,3/3] clk: qcom: Always add factor clock for xo clocks
+From: Georgi Djakov <georgi.djakov@linaro.org>
+X-Patchwork-Id: 9409421
+Message-Id: <20161102155658.32203-4-georgi.djakov@linaro.org>
+To: sboyd@codeaurora.org, mturquette@baylibre.com
+Cc: linux-clk@vger.kernel.org, devicetree@vger.kernel.org,
+ robh+dt@kernel.org, mark.rutland@arm.com,
+ linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
+ georgi.djakov@linaro.org
+Date: Wed,  2 Nov 2016 17:56:58 +0200
+
+Currently the RPM/RPM-SMD clock drivers do not register the xo clocks,
+so we should always add factor clock. When we later add xo clocks support
+into the drivers, we should update this function to skip registration.
+By doing so we avoid any DT dependencies.
+
+Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
+---
+ drivers/clk/qcom/common.c | 15 ++++++---------
+ 1 file changed, 6 insertions(+), 9 deletions(-)
+
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+
+--- a/drivers/clk/qcom/common.c
++++ b/drivers/clk/qcom/common.c
+@@ -154,15 +154,12 @@ int qcom_cc_register_board_clk(struct de
+ 			       const char *name, unsigned long rate)
+ {
+ 	bool add_factor = true;
+-	struct device_node *node;
+ 
+-	/* The RPM clock driver will add the factor clock if present */
+-	if (IS_ENABLED(CONFIG_QCOM_RPMCC)) {
+-		node = of_find_compatible_node(NULL, NULL, "qcom,rpmcc");
+-		if (of_device_is_available(node))
+-			add_factor = false;
+-		of_node_put(node);
+-	}
++	/*
++	 * TODO: The RPM clock driver currently does not support the xo clock.
++	 * When xo is added to the RPM clock driver, we should change this
++	 * function to skip registration of xo factor clocks.
++	 */
+ 
+ 	return _qcom_cc_register_board_clk(dev, path, name, rate, add_factor);
+ }