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From:   Abel Vesa <abel.vesa@nxp.com>
To:     Rob Herring <robh@kernel.org>, Dong Aisheng <aisheng.dong@nxp.com>,
        Shawn Guo <shawnguo@kernel.org>,
        Sascha Hauer <s.hauer@pengutronix.de>,
        Fabio Estevam <festevam@gmail.com>,
        "catalin.marinas@arm.com" <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        MyungJoo Ham <myungjoo.ham@samsung.com>,
        Kyungmin Park <kyungmin.park@samsung.com>,
        Chanwoo Choi <cw00.choi@samsung.com>,
        Georgi Djakov <djakov@kernel.org>,
        Adrian Hunter <adrian.hunter@intel.com>,
        Ulf Hansson <ulf.hansson@linaro.org>,
        Ahmad Fatoum <a.fatoum@pengutronix.de>
Cc:     Pengutronix Kernel Team <kernel@pengutronix.de>,
        linux-serial@vger.kernel.org, NXP Linux Team <linux-imx@nxp.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        devicetree@vger.kernel.org, linux-pm@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, Abel Vesa <abel.vesa@nxp.com>
Subject: [RFC 11/19] interconnect: imx: Add imx_icc_get_bw and imx_icc_aggregate functions
Date:   Mon, 13 Sep 2021 20:38:06 +0300
Message-Id: <1631554694-9599-12-git-send-email-abel.vesa@nxp.com>
In-Reply-To: <1631554694-9599-1-git-send-email-abel.vesa@nxp.com>
References: <1631554694-9599-1-git-send-email-abel.vesa@nxp.com>
Precedence: bulk

The aggregate function will return whatever is the highest
rate for that specific node. The imx_icc_get_bw sets the
initial avg and peak to 0 in order to avoid setting them to
INT_MAX by the interconnect core.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
---
 drivers/interconnect/imx/imx.c | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/drivers/interconnect/imx/imx.c b/drivers/interconnect/imx/imx.c
index db048df80011..5cc1ce55406c 100644
--- a/drivers/interconnect/imx/imx.c
+++ b/drivers/interconnect/imx/imx.c
@@ -25,6 +25,23 @@ struct imx_icc_node {
 	struct dev_pm_qos_request qos_req;
 };
 
+static int imx_icc_get_bw(struct icc_node *node, u32 *avg, u32 *peak)
+{
+	*avg = 0;
+	*peak = 0;
+
+	return 0;
+}
+
+static int imx_icc_aggregate(struct icc_node *node, u32 tag, u32 avg_bw,
+		      u32 peak_bw, u32 *agg_avg, u32 *agg_peak)
+{
+	*agg_avg = max(*agg_avg, avg_bw);
+	*agg_peak = max(*agg_peak, peak_bw);
+
+	return 0;
+}
+
 static int imx_icc_node_set(struct icc_node *node)
 {
 	struct device *dev = node->provider->dev;
@@ -233,7 +250,8 @@ int imx_icc_register(struct platform_device *pdev,
 	if (!provider)
 		return -ENOMEM;
 	provider->set = imx_icc_set;
-	provider->aggregate = icc_std_aggregate;
+	provider->get_bw = imx_icc_get_bw;
+	provider->aggregate = imx_icc_aggregate;
 	provider->xlate = of_icc_xlate_onecell;
 	provider->data = data;
 	provider->dev = dev;
-- 
2.31.1