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From d278c7a0bf730318a7ccf8d0a8b434c813e23fd0 Mon Sep 17 00:00:00 2001
From: "SkyLake.Huang" <skylake.huang@mediatek.com>
Date: Thu, 23 Jun 2022 18:39:03 +0800
Subject: [PATCH 4/6] drivers: spi-mt65xx: Add controller's calibration
paramter
Signed-off-by: SkyLake.Huang <skylake.huang@mediatek.com>
---
drivers/spi/spi-mt65xx.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
--- a/drivers/spi/spi-mt65xx.c
+++ b/drivers/spi/spi-mt65xx.c
@@ -800,6 +800,21 @@ static irqreturn_t mtk_spi_interrupt(int
return IRQ_HANDLED;
}
+static int mtk_spi_append_caldata(struct spi_controller *ctlr)
+{
+ struct spi_cal_target *cal_target = kmalloc(sizeof(*cal_target), GFP_KERNEL);
+ struct mtk_spi *mdata = spi_master_get_devdata(ctlr);
+
+ cal_target->cal_item = &mdata->get_tick_dly;
+ cal_target->cal_min = 0;
+ cal_target->cal_max = 7;
+ cal_target->step = 1;
+
+ list_add(&cal_target->list, ctlr->cal_target);
+
+ return 0;
+}
+
static int mtk_spi_mem_adjust_op_size(struct spi_mem *mem,
struct spi_mem_op *op)
{
@@ -1092,6 +1107,7 @@ static int mtk_spi_probe(struct platform
master->setup = mtk_spi_setup;
master->set_cs_timing = mtk_spi_set_hw_cs_timing;
master->use_gpio_descriptors = true;
+ master->append_caldata = mtk_spi_append_caldata;
of_id = of_match_node(mtk_spi_of_match, pdev->dev.of_node);
if (!of_id) {
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