1 // SPDX-License-Identifier: GPL-2.0-only
14 #include <linux/mfd/syscon.h>
15 #include <dt-bindings/soc/qcom,gsbi.h>
83 	{	/* ADM 0 - B */
88 	{	/* ADM 0 - B */
93 	{	/* ADM 1 - A */
98 	{	/* ADM 1 - B */
114 	struct regmap *tcsr;  member
118 	{ .compatible = "qcom,tcsr-ipq8064", .data = &config_ipq8064},
119 	{ .compatible = "qcom,tcsr-apq8064", .data = &config_apq8064},
120 	{ .compatible = "qcom,tcsr-msm8960", .data = &config_msm8960},
121 	{ .compatible = "qcom,tcsr-msm8660", .data = &config_msm8660},
127 	struct device_node *node = pdev->dev.of_node;  in gsbi_probe()
137 	gsbi = devm_kzalloc(&pdev->dev, sizeof(*gsbi), GFP_KERNEL);  in gsbi_probe()
140 		return -ENOMEM;  in gsbi_probe()
143 	base = devm_ioremap_resource(&pdev->dev, res);  in gsbi_probe()
147 	/* get the tcsr node and setup the config and regmap */  in gsbi_probe()
148 	gsbi->tcsr = syscon_regmap_lookup_by_phandle(node, "syscon-tcsr");  in gsbi_probe()
150 	if (!IS_ERR(gsbi->tcsr)) {  in gsbi_probe()
151 		tcsr_node = of_parse_phandle(node, "syscon-tcsr", 0);  in gsbi_probe()
155 				config = match->data;  in gsbi_probe()
157 				dev_warn(&pdev->dev, "no matching TCSR\n");  in gsbi_probe()
163 	if (of_property_read_u32(node, "cell-index", &gsbi_num)) {  in gsbi_probe()
164 		dev_err(&pdev->dev, "missing cell-index\n");  in gsbi_probe()
165 		return -EINVAL;  in gsbi_probe()
169 		dev_err(&pdev->dev, "invalid cell-index\n");  in gsbi_probe()
170 		return -EINVAL;  in gsbi_probe()
173 	if (of_property_read_u32(node, "qcom,mode", &gsbi->mode)) {  in gsbi_probe()
174 		dev_err(&pdev->dev, "missing mode configuration\n");  in gsbi_probe()
175 		return -EINVAL;  in gsbi_probe()
179 	of_property_read_u32(node, "qcom,crci", &gsbi->crci);  in gsbi_probe()
181 	dev_info(&pdev->dev, "GSBI port protocol: %d crci: %d\n",  in gsbi_probe()
182 		 gsbi->mode, gsbi->crci);  in gsbi_probe()
183 	gsbi->hclk = devm_clk_get(&pdev->dev, "iface");  in gsbi_probe()
184 	if (IS_ERR(gsbi->hclk))  in gsbi_probe()
185 		return PTR_ERR(gsbi->hclk);  in gsbi_probe()
187 	clk_prepare_enable(gsbi->hclk);  in gsbi_probe()
189 	writel_relaxed((gsbi->mode << GSBI_PROTOCOL_SHIFT) | gsbi->crci,  in gsbi_probe()
193 	 * modify tcsr to reflect mode and ADM CRCI mux  in gsbi_probe()
198 		for (i = 0; i < config->num_rows; i++) {  in gsbi_probe()
199 			mask = config->array[i][gsbi_num - 1];  in gsbi_probe()
201 			if (gsbi->mode == GSBI_PROT_SPI)  in gsbi_probe()
202 				regmap_update_bits(gsbi->tcsr,  in gsbi_probe()
205 				regmap_update_bits(gsbi->tcsr,  in gsbi_probe()
216 	ret = of_platform_populate(node, NULL, NULL, &pdev->dev);  in gsbi_probe()
218 		clk_disable_unprepare(gsbi->hclk);  in gsbi_probe()
226 	clk_disable_unprepare(gsbi->hclk);  in gsbi_remove()
232 	{ .compatible = "qcom,gsbi-v1.0.0", },